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<div class="title">qwt_date_scale_engine.cpp</div>  </div>
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<div class="contents">
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/******************************************************************************</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * Qwt Widget Library</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> * Copyright (C) 1997   Josef Wilgen</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> * Copyright (C) 2002   Uwe Rathmann</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * This library is free software; you can redistribute it and/or</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> * modify it under the terms of the Qwt License, Version 1.0</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> *****************************************************************************/</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160; </div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="preprocessor">#include &quot;qwt_date_scale_engine.h&quot;</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="preprocessor">#include &quot;qwt_math.h&quot;</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="preprocessor">#include &quot;qwt_interval.h&quot;</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160; </div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="preprocessor">#include &lt;qdatetime.h&gt;</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160; </div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="preprocessor">#include &lt;limits&gt;</span></div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160; </div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">double</span> qwtMsecsForType( <span class="keywordtype">int</span> type )</div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;{</div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;    <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">double</span> msecs[] =</div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;    {</div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;        1.0,</div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;        1000.0,</div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;        60.0 * 1000.0,</div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;        3600.0 * 1000.0,</div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;        24.0 * 3600.0 * 1000.0,</div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;        7.0 * 24.0 * 3600.0 * 1000.0,</div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;        30.0 * 24.0 * 3600.0 * 1000.0,</div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;        365.0 * 24.0 * 3600.0 * 1000.0,</div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;    };</div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160; </div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;    <span class="keywordflow">if</span> ( type &lt; 0 || type &gt;= <span class="keyword">static_cast&lt;</span> <span class="keywordtype">int</span> <span class="keyword">&gt;</span>( <span class="keyword">sizeof</span>( msecs ) / <span class="keyword">sizeof</span>( msecs[0] ) ) )</div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;        <span class="keywordflow">return</span> 1.0;</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160; </div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;    <span class="keywordflow">return</span> msecs[ type ];</div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;}</div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160; </div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span> qwtAlignValue(</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;    <span class="keywordtype">double</span> value, <span class="keywordtype">double</span> stepSize, <span class="keywordtype">bool</span> up )</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;{</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;    <span class="keywordtype">double</span> d = value / stepSize;</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;    d = up ? std::ceil( d ) : std::floor( d );</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160; </div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;    <span class="keywordflow">return</span> <span class="keyword">static_cast&lt;</span> <span class="keywordtype">int</span> <span class="keyword">&gt;</span>( d * stepSize );</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;}</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160; </div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;<span class="keyword">static</span> <span class="keywordtype">double</span> qwtIntervalWidth( <span class="keyword">const</span> QDateTime&amp; minDate,</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;    <span class="keyword">const</span> QDateTime&amp; maxDate, <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587">QwtDate::IntervalType</a> intervalType )</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;{</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;    <span class="keywordflow">switch</span>( intervalType )</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;    {</div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a4e1d45d6382c27689a30adc11186d4f1">QwtDate::Millisecond</a>:</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;        {</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;            <span class="keywordflow">return</span> minDate.msecsTo( maxDate );</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;        }</div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587aabaf7a7d45288a33590f61fe075b3590">QwtDate::Second</a>:</div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;        {</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;            <span class="keywordflow">return</span> minDate.secsTo( maxDate );</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;        }</div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a7c9073c66b2628adbe772ac4c1a678ef">QwtDate::Minute</a>:</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;        {</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">double</span> secsTo = minDate.secsTo( maxDate );</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;            <span class="keywordflow">return</span> std::floor( secsTo / 60 );</div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;        }</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a8e7a2f91f89423e446bfdaa1e01ebd2f">QwtDate::Hour</a>:</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;        {</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">double</span> secsTo = minDate.secsTo( maxDate );</div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;            <span class="keywordflow">return</span> std::floor( secsTo / 3600 );</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;        }</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a1d503616cab082a9c741be881cc0a813">QwtDate::Day</a>:</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;        {</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;            <span class="keywordflow">return</span> minDate.daysTo( maxDate );</div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;        }</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587ae204b4e8ce8679ba9ac378e41bd77b2b">QwtDate::Week</a>:</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;        {</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;            <span class="keywordflow">return</span> std::floor( minDate.daysTo( maxDate ) / 7.0 );</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;        }</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a0ab43f35f1bdbae7536be2be0455700a">QwtDate::Month</a>:</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;        {</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">double</span> years =</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;                double( maxDate.date().year() ) - minDate.date().year();</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160; </div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;            <span class="keywordtype">int</span> months = maxDate.date().month() - minDate.date().month();</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;            <span class="keywordflow">if</span> ( maxDate.date().day() &lt; minDate.date().day() )</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;                months--;</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160; </div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;            <span class="keywordflow">return</span> years * 12 + months;</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;        }</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587ae306523ed94ccf930afb811ff7a735ab">QwtDate::Year</a>:</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;        {</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;            <span class="keywordtype">double</span> years =</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;                double( maxDate.date().year() ) - minDate.date().year();</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160; </div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;            <span class="keywordflow">if</span> ( maxDate.date().month() &lt; minDate.date().month() )</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;                years -= 1.0;</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160; </div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;            <span class="keywordflow">return</span> years;</div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;        }</div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;    }</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160; </div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;    <span class="keywordflow">return</span> 0.0;</div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;}</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160; </div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;<span class="keyword">static</span> <span class="keywordtype">double</span> qwtRoundedIntervalWidth(</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;    <span class="keyword">const</span> QDateTime&amp; minDate, <span class="keyword">const</span> QDateTime&amp; maxDate,</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;    <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587">QwtDate::IntervalType</a> intervalType )</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;{</div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;    <span class="keyword">const</span> QDateTime minD = <a class="code" href="class_qwt_date.html#a1b350f22a57b44b529bc4de740dbe213">QwtDate::floor</a>( minDate, intervalType );</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;    <span class="keyword">const</span> QDateTime maxD = <a class="code" href="class_qwt_date.html#ab4d7b043971e13a97a8b5f9edb5eee02">QwtDate::ceil</a>( maxDate, intervalType );</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160; </div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;    <span class="keywordflow">return</span> qwtIntervalWidth( minD, maxD, intervalType );</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;}</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160; </div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span> qwtStepCount( <span class="keywordtype">int</span> intervalSize, <span class="keywordtype">int</span> maxSteps,</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> limits[], <span class="keywordtype">size_t</span> numLimits )</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;{</div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;    <span class="keywordflow">for</span> ( uint i = 0; i &lt; numLimits; i++ )</div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;    {</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">int</span> numSteps = intervalSize / limits[ i ];</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160; </div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;        <span class="keywordflow">if</span> ( numSteps &gt; 1 &amp;&amp; numSteps &lt;= maxSteps &amp;&amp;</div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;            numSteps * limits[ i ] == intervalSize )</div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;        {</div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;            <span class="keywordflow">return</span> numSteps;</div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;        }</div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;    }</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160; </div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;}</div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160; </div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span> qwtStepSize( <span class="keywordtype">int</span> intervalSize, <span class="keywordtype">int</span> maxSteps, uint base )</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;{</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;    <span class="keywordflow">if</span> ( maxSteps &lt;= 0 )</div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;        <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160; </div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;    <span class="keywordflow">if</span> ( maxSteps &gt; 2 )</div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;    {</div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;        <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> numSteps = maxSteps; numSteps &gt; 1; numSteps-- )</div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;        {</div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">double</span> stepSize = double( intervalSize ) / numSteps;</div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160; </div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">double</span> p = std::floor( std::log( stepSize ) / std::log( <span class="keywordtype">double</span>( base ) ) );</div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">double</span> fraction = std::pow( base, p );</div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160; </div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;            <span class="keywordflow">for</span> ( uint n = base; n &gt;= 1; n /= 2 )</div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;            {</div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;                <span class="keywordflow">if</span> ( qFuzzyCompare( stepSize, n * fraction ) )</div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;                    <span class="keywordflow">return</span> qRound( stepSize );</div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160; </div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;                <span class="keywordflow">if</span> ( n == 3 &amp;&amp; ( base % 2 ) == 0 )</div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;                {</div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;                    <span class="keywordflow">if</span> ( qFuzzyCompare( stepSize, 2 * fraction ) )</div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;                        <span class="keywordflow">return</span> qRound( stepSize );</div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;                }</div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;            }</div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;        }</div>
<div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;    }</div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160; </div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;}</div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160; </div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span> qwtDivideInterval( <span class="keywordtype">double</span> intervalSize, <span class="keywordtype">int</span> numSteps,</div>
<div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> limits[], <span class="keywordtype">size_t</span> numLimits )</div>
<div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;{</div>
<div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> v = qwtCeil( intervalSize / <span class="keywordtype">double</span>( numSteps ) );</div>
<div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160; </div>
<div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;    <span class="keywordflow">for</span> ( uint i = 0; i &lt; numLimits - 1; i++ )</div>
<div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;    {</div>
<div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;        <span class="keywordflow">if</span> ( v &lt;= limits[i] )</div>
<div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;            <span class="keywordflow">return</span> limits[i];</div>
<div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;    }</div>
<div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160; </div>
<div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;    <span class="keywordflow">return</span> limits[ numLimits - 1 ];</div>
<div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;}</div>
<div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160; </div>
<div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;<span class="keyword">static</span> <span class="keywordtype">double</span> qwtDivideScale( <span class="keywordtype">double</span> intervalSize, <span class="keywordtype">int</span> numSteps,</div>
<div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;    <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587">QwtDate::IntervalType</a> intervalType )</div>
<div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;{</div>
<div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;    <span class="keywordflow">if</span> ( intervalType != <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a1d503616cab082a9c741be881cc0a813">QwtDate::Day</a> )</div>
<div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;    {</div>
<div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;        <span class="keywordflow">if</span> ( ( intervalSize &gt; numSteps ) &amp;&amp;</div>
<div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;            ( intervalSize &lt;= 2 * numSteps ) )</div>
<div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;        {</div>
<div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;            <span class="keywordflow">return</span> 2.0;</div>
<div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;        }</div>
<div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;    }</div>
<div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160; </div>
<div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;    <span class="keywordtype">double</span> stepSize;</div>
<div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160; </div>
<div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;    <span class="keywordflow">switch</span>( intervalType )</div>
<div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;    {</div>
<div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587aabaf7a7d45288a33590f61fe075b3590">QwtDate::Second</a>:</div>
<div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a7c9073c66b2628adbe772ac4c1a678ef">QwtDate::Minute</a>:</div>
<div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;        {</div>
<div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;            <span class="keyword">static</span> <span class="keywordtype">int</span> limits[] = { 1, 2, 5, 10, 15, 20, 30, 60 };</div>
<div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160; </div>
<div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;            stepSize = qwtDivideInterval( intervalSize, numSteps,</div>
<div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;                limits, <span class="keyword">sizeof</span>( limits ) / <span class="keyword">sizeof</span>( <span class="keywordtype">int</span> ) );</div>
<div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160; </div>
<div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;        }</div>
<div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a8e7a2f91f89423e446bfdaa1e01ebd2f">QwtDate::Hour</a>:</div>
<div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;        {</div>
<div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;            <span class="keyword">static</span> <span class="keywordtype">int</span> limits[] = { 1, 2, 3, 4, 6, 12, 24 };</div>
<div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160; </div>
<div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;            stepSize = qwtDivideInterval( intervalSize, numSteps,</div>
<div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;                limits, <span class="keyword">sizeof</span>( limits ) / <span class="keyword">sizeof</span>( <span class="keywordtype">int</span> ) );</div>
<div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160; </div>
<div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;        }</div>
<div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a1d503616cab082a9c741be881cc0a813">QwtDate::Day</a>:</div>
<div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;        {</div>
<div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">double</span> v = intervalSize / double( numSteps );</div>
<div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;            <span class="keywordflow">if</span> ( v &lt;= 5.0 )</div>
<div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;                stepSize = std::ceil( v );</div>
<div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;            <span class="keywordflow">else</span></div>
<div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;                stepSize = std::ceil( v / 7 ) * 7;</div>
<div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160; </div>
<div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;        }</div>
<div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587ae204b4e8ce8679ba9ac378e41bd77b2b">QwtDate::Week</a>:</div>
<div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;        {</div>
<div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;            <span class="keyword">static</span> <span class="keywordtype">int</span> limits[] = { 1, 2, 4, 8, 12, 26, 52 };</div>
<div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160; </div>
<div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;            stepSize = qwtDivideInterval( intervalSize, numSteps,</div>
<div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;                limits, <span class="keyword">sizeof</span>( limits ) / <span class="keyword">sizeof</span>( <span class="keywordtype">int</span> ) );</div>
<div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160; </div>
<div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;        }</div>
<div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a0ab43f35f1bdbae7536be2be0455700a">QwtDate::Month</a>:</div>
<div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;        {</div>
<div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;            <span class="keyword">static</span> <span class="keywordtype">int</span> limits[] = { 1, 2, 3, 4, 6, 12 };</div>
<div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160; </div>
<div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;            stepSize = qwtDivideInterval( intervalSize, numSteps,</div>
<div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;                limits, <span class="keyword">sizeof</span>( limits ) / <span class="keyword">sizeof</span>( <span class="keywordtype">int</span> ) );</div>
<div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160; </div>
<div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;        }</div>
<div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587ae306523ed94ccf930afb811ff7a735ab">QwtDate::Year</a>:</div>
<div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a4e1d45d6382c27689a30adc11186d4f1">QwtDate::Millisecond</a>:</div>
<div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;        <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;        {</div>
<div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;            stepSize = <a class="code" href="class_qwt_scale_arithmetic.html#a9d50d78310bbd82289f2558ad436667a">QwtScaleArithmetic::divideInterval</a>(</div>
<div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;                intervalSize, numSteps, 10 );</div>
<div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;        }</div>
<div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;    }</div>
<div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160; </div>
<div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;    <span class="keywordflow">return</span> stepSize;</div>
<div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;}</div>
<div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160; </div>
<div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;<span class="keyword">static</span> <span class="keywordtype">double</span> qwtDivideMajorStep( <span class="keywordtype">double</span> stepSize, <span class="keywordtype">int</span> maxMinSteps,</div>
<div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;    <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587">QwtDate::IntervalType</a> intervalType )</div>
<div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;{</div>
<div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;    <span class="keywordtype">double</span> minStepSize = 0.0;</div>
<div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160; </div>
<div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;    <span class="keywordflow">switch</span>( intervalType )</div>
<div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;    {</div>
<div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587aabaf7a7d45288a33590f61fe075b3590">QwtDate::Second</a>:</div>
<div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;        {</div>
<div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;            minStepSize = qwtStepSize( stepSize, maxMinSteps, 10 );</div>
<div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;            <span class="keywordflow">if</span> ( minStepSize == 0.0 )</div>
<div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;                minStepSize = 0.5 * stepSize;</div>
<div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160; </div>
<div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;        }</div>
<div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a7c9073c66b2628adbe772ac4c1a678ef">QwtDate::Minute</a>:</div>
<div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;        {</div>
<div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;            <span class="keyword">static</span> <span class="keywordtype">int</span> limits[] = { 1, 2, 5, 10, 15, 20, 30, 60 };</div>
<div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160; </div>
<div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;            <span class="keywordtype">int</span> numSteps;</div>
<div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160; </div>
<div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;            <span class="keywordflow">if</span> ( stepSize &gt; maxMinSteps )</div>
<div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;            {</div>
<div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;                numSteps = qwtStepCount( stepSize, maxMinSteps,</div>
<div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;                    limits, <span class="keyword">sizeof</span>( limits ) / <span class="keyword">sizeof</span>( <span class="keywordtype">int</span> ) );</div>
<div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160; </div>
<div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;            }</div>
<div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;            <span class="keywordflow">else</span></div>
<div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;            {</div>
<div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;                numSteps = qwtStepCount( stepSize * 60, maxMinSteps,</div>
<div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;                    limits, <span class="keyword">sizeof</span>( limits ) / <span class="keyword">sizeof</span>( <span class="keywordtype">int</span> ) );</div>
<div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;            }</div>
<div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160; </div>
<div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;            <span class="keywordflow">if</span> ( numSteps &gt; 0 )</div>
<div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;                minStepSize = stepSize / numSteps;</div>
<div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160; </div>
<div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;        }</div>
<div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a8e7a2f91f89423e446bfdaa1e01ebd2f">QwtDate::Hour</a>:</div>
<div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;        {</div>
<div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;            <span class="keywordtype">int</span> numSteps = 0;</div>
<div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160; </div>
<div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;            <span class="keywordflow">if</span> ( stepSize &gt; maxMinSteps )</div>
<div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;            {</div>
<div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;                <span class="keyword">static</span> <span class="keywordtype">int</span> limits[] = { 1, 2, 3, 4, 6, 12, 24, 48, 72 };</div>
<div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160; </div>
<div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;                numSteps = qwtStepCount( stepSize, maxMinSteps,</div>
<div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;                    limits, <span class="keyword">sizeof</span>( limits ) / <span class="keyword">sizeof</span>( <span class="keywordtype">int</span> ) );</div>
<div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;            }</div>
<div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;            <span class="keywordflow">else</span></div>
<div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;            {</div>
<div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;                <span class="keyword">static</span> <span class="keywordtype">int</span> limits[] = { 1, 2, 5, 10, 15, 20, 30, 60 };</div>
<div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160; </div>
<div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;                numSteps = qwtStepCount( stepSize * 60, maxMinSteps,</div>
<div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;                    limits, <span class="keyword">sizeof</span>( limits ) / <span class="keyword">sizeof</span>( <span class="keywordtype">int</span> ) );</div>
<div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;            }</div>
<div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160; </div>
<div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;            <span class="keywordflow">if</span> ( numSteps &gt; 0 )</div>
<div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;                minStepSize = stepSize / numSteps;</div>
<div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160; </div>
<div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;        }</div>
<div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a1d503616cab082a9c741be881cc0a813">QwtDate::Day</a>:</div>
<div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;        {</div>
<div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160;            <span class="keywordtype">int</span> numSteps = 0;</div>
<div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160; </div>
<div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;            <span class="keywordflow">if</span> ( stepSize &gt; maxMinSteps )</div>
<div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;            {</div>
<div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;                <span class="keyword">static</span> <span class="keywordtype">int</span> limits[] = { 1, 2, 3, 7, 14, 28 };</div>
<div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160; </div>
<div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;                numSteps = qwtStepCount( stepSize, maxMinSteps,</div>
<div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;                    limits, <span class="keyword">sizeof</span>( limits ) / <span class="keyword">sizeof</span>( <span class="keywordtype">int</span> ) );</div>
<div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;            }</div>
<div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160;            <span class="keywordflow">else</span></div>
<div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160;            {</div>
<div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160;                <span class="keyword">static</span> <span class="keywordtype">int</span> limits[] = { 1, 2, 3, 4, 6, 12, 24, 48, 72 };</div>
<div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160; </div>
<div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;                numSteps = qwtStepCount( stepSize * 24, maxMinSteps,</div>
<div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160;                    limits, <span class="keyword">sizeof</span>( limits ) / <span class="keyword">sizeof</span>( <span class="keywordtype">int</span> ) );</div>
<div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160;            }</div>
<div class="line"><a name="l00331"></a><span class="lineno">  331</span>&#160; </div>
<div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;            <span class="keywordflow">if</span> ( numSteps &gt; 0 )</div>
<div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160;                minStepSize = stepSize / numSteps;</div>
<div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160; </div>
<div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00336"></a><span class="lineno">  336</span>&#160;        }</div>
<div class="line"><a name="l00337"></a><span class="lineno">  337</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587ae204b4e8ce8679ba9ac378e41bd77b2b">QwtDate::Week</a>:</div>
<div class="line"><a name="l00338"></a><span class="lineno">  338</span>&#160;        {</div>
<div class="line"><a name="l00339"></a><span class="lineno">  339</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">int</span> daysInStep = stepSize * 7;</div>
<div class="line"><a name="l00340"></a><span class="lineno">  340</span>&#160; </div>
<div class="line"><a name="l00341"></a><span class="lineno">  341</span>&#160;            <span class="keywordflow">if</span> ( maxMinSteps &gt;= daysInStep )</div>
<div class="line"><a name="l00342"></a><span class="lineno">  342</span>&#160;            {</div>
<div class="line"><a name="l00343"></a><span class="lineno">  343</span>&#160;                <span class="comment">// we want to have one tick per day</span></div>
<div class="line"><a name="l00344"></a><span class="lineno">  344</span>&#160;                minStepSize = 1.0 / 7.0;</div>
<div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160;            }</div>
<div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160;            <span class="keywordflow">else</span></div>
<div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160;            {</div>
<div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;                <span class="comment">// when the stepSize is more than a week we want to</span></div>
<div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160;                <span class="comment">// have a tick for each week</span></div>
<div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160; </div>
<div class="line"><a name="l00351"></a><span class="lineno">  351</span>&#160;                <span class="keyword">const</span> <span class="keywordtype">int</span> stepSizeInWeeks = stepSize;</div>
<div class="line"><a name="l00352"></a><span class="lineno">  352</span>&#160; </div>
<div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;                <span class="keywordflow">if</span> ( stepSizeInWeeks &lt;= maxMinSteps )</div>
<div class="line"><a name="l00354"></a><span class="lineno">  354</span>&#160;                {</div>
<div class="line"><a name="l00355"></a><span class="lineno">  355</span>&#160;                    minStepSize = 1;</div>
<div class="line"><a name="l00356"></a><span class="lineno">  356</span>&#160;                }</div>
<div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160;                <span class="keywordflow">else</span></div>
<div class="line"><a name="l00358"></a><span class="lineno">  358</span>&#160;                {</div>
<div class="line"><a name="l00359"></a><span class="lineno">  359</span>&#160;                    minStepSize = <a class="code" href="class_qwt_scale_arithmetic.html#a9d50d78310bbd82289f2558ad436667a">QwtScaleArithmetic::divideInterval</a>(</div>
<div class="line"><a name="l00360"></a><span class="lineno">  360</span>&#160;                        stepSizeInWeeks, maxMinSteps, 10 );</div>
<div class="line"><a name="l00361"></a><span class="lineno">  361</span>&#160;                }</div>
<div class="line"><a name="l00362"></a><span class="lineno">  362</span>&#160;            }</div>
<div class="line"><a name="l00363"></a><span class="lineno">  363</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00364"></a><span class="lineno">  364</span>&#160;        }</div>
<div class="line"><a name="l00365"></a><span class="lineno">  365</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a0ab43f35f1bdbae7536be2be0455700a">QwtDate::Month</a>:</div>
<div class="line"><a name="l00366"></a><span class="lineno">  366</span>&#160;        {</div>
<div class="line"><a name="l00367"></a><span class="lineno">  367</span>&#160;            <span class="comment">// fractions of months doesn&#39;t make any sense</span></div>
<div class="line"><a name="l00368"></a><span class="lineno">  368</span>&#160; </div>
<div class="line"><a name="l00369"></a><span class="lineno">  369</span>&#160;            <span class="keywordflow">if</span> ( stepSize &lt; maxMinSteps )</div>
<div class="line"><a name="l00370"></a><span class="lineno">  370</span>&#160;                maxMinSteps = <span class="keyword">static_cast&lt;</span> <span class="keywordtype">int</span> <span class="keyword">&gt;</span>( stepSize );</div>
<div class="line"><a name="l00371"></a><span class="lineno">  371</span>&#160; </div>
<div class="line"><a name="l00372"></a><span class="lineno">  372</span>&#160;            <span class="keyword">static</span> <span class="keywordtype">int</span> limits[] = { 1, 2, 3, 4, 6, 12 };</div>
<div class="line"><a name="l00373"></a><span class="lineno">  373</span>&#160; </div>
<div class="line"><a name="l00374"></a><span class="lineno">  374</span>&#160;            <span class="keywordtype">int</span> numSteps = qwtStepCount( stepSize, maxMinSteps,</div>
<div class="line"><a name="l00375"></a><span class="lineno">  375</span>&#160;                limits, <span class="keyword">sizeof</span>( limits ) / <span class="keyword">sizeof</span>( <span class="keywordtype">int</span> ) );</div>
<div class="line"><a name="l00376"></a><span class="lineno">  376</span>&#160; </div>
<div class="line"><a name="l00377"></a><span class="lineno">  377</span>&#160;            <span class="keywordflow">if</span> ( numSteps &gt; 0 )</div>
<div class="line"><a name="l00378"></a><span class="lineno">  378</span>&#160;                minStepSize = stepSize / numSteps;</div>
<div class="line"><a name="l00379"></a><span class="lineno">  379</span>&#160; </div>
<div class="line"><a name="l00380"></a><span class="lineno">  380</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00381"></a><span class="lineno">  381</span>&#160;        }</div>
<div class="line"><a name="l00382"></a><span class="lineno">  382</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587ae306523ed94ccf930afb811ff7a735ab">QwtDate::Year</a>:</div>
<div class="line"><a name="l00383"></a><span class="lineno">  383</span>&#160;        {</div>
<div class="line"><a name="l00384"></a><span class="lineno">  384</span>&#160;            <span class="keywordflow">if</span> ( stepSize &gt;= maxMinSteps )</div>
<div class="line"><a name="l00385"></a><span class="lineno">  385</span>&#160;            {</div>
<div class="line"><a name="l00386"></a><span class="lineno">  386</span>&#160;                minStepSize = <a class="code" href="class_qwt_scale_arithmetic.html#a9d50d78310bbd82289f2558ad436667a">QwtScaleArithmetic::divideInterval</a>(</div>
<div class="line"><a name="l00387"></a><span class="lineno">  387</span>&#160;                    stepSize, maxMinSteps, 10 );</div>
<div class="line"><a name="l00388"></a><span class="lineno">  388</span>&#160;            }</div>
<div class="line"><a name="l00389"></a><span class="lineno">  389</span>&#160;            <span class="keywordflow">else</span></div>
<div class="line"><a name="l00390"></a><span class="lineno">  390</span>&#160;            {</div>
<div class="line"><a name="l00391"></a><span class="lineno">  391</span>&#160;                <span class="comment">// something in months</span></div>
<div class="line"><a name="l00392"></a><span class="lineno">  392</span>&#160; </div>
<div class="line"><a name="l00393"></a><span class="lineno">  393</span>&#160;                <span class="keyword">static</span> <span class="keywordtype">int</span> limits[] = { 1, 2, 3, 4, 6, 12 };</div>
<div class="line"><a name="l00394"></a><span class="lineno">  394</span>&#160; </div>
<div class="line"><a name="l00395"></a><span class="lineno">  395</span>&#160;                <span class="keywordtype">int</span> numSteps = qwtStepCount( 12 * stepSize, maxMinSteps,</div>
<div class="line"><a name="l00396"></a><span class="lineno">  396</span>&#160;                    limits, <span class="keyword">sizeof</span>( limits ) / <span class="keyword">sizeof</span>( <span class="keywordtype">int</span> ) );</div>
<div class="line"><a name="l00397"></a><span class="lineno">  397</span>&#160; </div>
<div class="line"><a name="l00398"></a><span class="lineno">  398</span>&#160;                <span class="keywordflow">if</span> ( numSteps &gt; 0 )</div>
<div class="line"><a name="l00399"></a><span class="lineno">  399</span>&#160;                    minStepSize = stepSize / numSteps;</div>
<div class="line"><a name="l00400"></a><span class="lineno">  400</span>&#160;            }</div>
<div class="line"><a name="l00401"></a><span class="lineno">  401</span>&#160; </div>
<div class="line"><a name="l00402"></a><span class="lineno">  402</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00403"></a><span class="lineno">  403</span>&#160;        }</div>
<div class="line"><a name="l00404"></a><span class="lineno">  404</span>&#160;        <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00405"></a><span class="lineno">  405</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00406"></a><span class="lineno">  406</span>&#160;    }</div>
<div class="line"><a name="l00407"></a><span class="lineno">  407</span>&#160; </div>
<div class="line"><a name="l00408"></a><span class="lineno">  408</span>&#160;    <span class="keywordflow">if</span> ( intervalType != <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a0ab43f35f1bdbae7536be2be0455700a">QwtDate::Month</a></div>
<div class="line"><a name="l00409"></a><span class="lineno">  409</span>&#160;        &amp;&amp; minStepSize == 0.0 )</div>
<div class="line"><a name="l00410"></a><span class="lineno">  410</span>&#160;    {</div>
<div class="line"><a name="l00411"></a><span class="lineno">  411</span>&#160;        minStepSize = 0.5 * stepSize;</div>
<div class="line"><a name="l00412"></a><span class="lineno">  412</span>&#160;    }</div>
<div class="line"><a name="l00413"></a><span class="lineno">  413</span>&#160; </div>
<div class="line"><a name="l00414"></a><span class="lineno">  414</span>&#160;    <span class="keywordflow">return</span> minStepSize;</div>
<div class="line"><a name="l00415"></a><span class="lineno">  415</span>&#160;}</div>
<div class="line"><a name="l00416"></a><span class="lineno">  416</span>&#160; </div>
<div class="line"><a name="l00417"></a><span class="lineno">  417</span>&#160;<span class="keyword">static</span> <a class="code" href="class_q_list.html">QList&lt; double &gt;</a> qwtDstTicks( <span class="keyword">const</span> QDateTime&amp; dateTime,</div>
<div class="line"><a name="l00418"></a><span class="lineno">  418</span>&#160;    <span class="keywordtype">int</span> secondsMajor, <span class="keywordtype">int</span> secondsMinor )</div>
<div class="line"><a name="l00419"></a><span class="lineno">  419</span>&#160;{</div>
<div class="line"><a name="l00420"></a><span class="lineno">  420</span>&#160;    <span class="keywordflow">if</span> ( secondsMinor &lt;= 0 )</div>
<div class="line"><a name="l00421"></a><span class="lineno">  421</span>&#160;        <a class="code" href="class_q_list.html">QList&lt; double &gt;</a>();</div>
<div class="line"><a name="l00422"></a><span class="lineno">  422</span>&#160; </div>
<div class="line"><a name="l00423"></a><span class="lineno">  423</span>&#160;    QDateTime minDate = dateTime.addSecs( -secondsMajor );</div>
<div class="line"><a name="l00424"></a><span class="lineno">  424</span>&#160;    minDate = <a class="code" href="class_qwt_date.html#a1b350f22a57b44b529bc4de740dbe213">QwtDate::floor</a>( minDate, <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a8e7a2f91f89423e446bfdaa1e01ebd2f">QwtDate::Hour</a> );</div>
<div class="line"><a name="l00425"></a><span class="lineno">  425</span>&#160; </div>
<div class="line"><a name="l00426"></a><span class="lineno">  426</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> utcOffset = <a class="code" href="class_qwt_date.html#aeadce3496f631eae3a7e54749078c7a4">QwtDate::utcOffset</a>( dateTime );</div>
<div class="line"><a name="l00427"></a><span class="lineno">  427</span>&#160; </div>
<div class="line"><a name="l00428"></a><span class="lineno">  428</span>&#160;    <span class="comment">// find the hours where daylight saving time happens</span></div>
<div class="line"><a name="l00429"></a><span class="lineno">  429</span>&#160; </div>
<div class="line"><a name="l00430"></a><span class="lineno">  430</span>&#160;    <span class="keywordtype">double</span> dstMin = <a class="code" href="class_qwt_date.html#afce10fd70f7a1ecac3f97776fb2dc46a">QwtDate::toDouble</a>( minDate );</div>
<div class="line"><a name="l00431"></a><span class="lineno">  431</span>&#160;    <span class="keywordflow">while</span> ( minDate &lt; dateTime &amp;&amp;</div>
<div class="line"><a name="l00432"></a><span class="lineno">  432</span>&#160;        <a class="code" href="class_qwt_date.html#aeadce3496f631eae3a7e54749078c7a4">QwtDate::utcOffset</a>( minDate ) != utcOffset )</div>
<div class="line"><a name="l00433"></a><span class="lineno">  433</span>&#160;    {</div>
<div class="line"><a name="l00434"></a><span class="lineno">  434</span>&#160;        minDate = minDate.addSecs( 3600 );</div>
<div class="line"><a name="l00435"></a><span class="lineno">  435</span>&#160;        dstMin += 3600 * 1000.0;</div>
<div class="line"><a name="l00436"></a><span class="lineno">  436</span>&#160;    }</div>
<div class="line"><a name="l00437"></a><span class="lineno">  437</span>&#160; </div>
<div class="line"><a name="l00438"></a><span class="lineno">  438</span>&#160;    <a class="code" href="class_q_list.html">QList&lt; double &gt;</a> ticks;</div>
<div class="line"><a name="l00439"></a><span class="lineno">  439</span>&#160;    ticks.reserve( 3600 / secondsMinor);</div>
<div class="line"><a name="l00440"></a><span class="lineno">  440</span>&#160; </div>
<div class="line"><a name="l00441"></a><span class="lineno">  441</span>&#160;    <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i &lt; 3600; i += secondsMinor )</div>
<div class="line"><a name="l00442"></a><span class="lineno">  442</span>&#160;        ticks += dstMin + i * 1000.0;</div>
<div class="line"><a name="l00443"></a><span class="lineno">  443</span>&#160; </div>
<div class="line"><a name="l00444"></a><span class="lineno">  444</span>&#160;    <span class="keywordflow">return</span> ticks;</div>
<div class="line"><a name="l00445"></a><span class="lineno">  445</span>&#160;}</div>
<div class="line"><a name="l00446"></a><span class="lineno">  446</span>&#160; </div>
<div class="line"><a name="l00447"></a><span class="lineno">  447</span>&#160;<span class="keyword">static</span> <a class="code" href="class_qwt_scale_div.html">QwtScaleDiv</a> qwtDivideToSeconds(</div>
<div class="line"><a name="l00448"></a><span class="lineno">  448</span>&#160;    <span class="keyword">const</span> QDateTime&amp; minDate, <span class="keyword">const</span> QDateTime&amp; maxDate,</div>
<div class="line"><a name="l00449"></a><span class="lineno">  449</span>&#160;    <span class="keywordtype">double</span> stepSize, <span class="keywordtype">int</span> maxMinSteps,</div>
<div class="line"><a name="l00450"></a><span class="lineno">  450</span>&#160;    <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587">QwtDate::IntervalType</a> intervalType )</div>
<div class="line"><a name="l00451"></a><span class="lineno">  451</span>&#160;{</div>
<div class="line"><a name="l00452"></a><span class="lineno">  452</span>&#160;    <span class="comment">// calculate the min step size</span></div>
<div class="line"><a name="l00453"></a><span class="lineno">  453</span>&#160;    <span class="keywordtype">double</span> minStepSize = 0;</div>
<div class="line"><a name="l00454"></a><span class="lineno">  454</span>&#160; </div>
<div class="line"><a name="l00455"></a><span class="lineno">  455</span>&#160;    <span class="keywordflow">if</span> ( maxMinSteps &gt; 1 )</div>
<div class="line"><a name="l00456"></a><span class="lineno">  456</span>&#160;    {</div>
<div class="line"><a name="l00457"></a><span class="lineno">  457</span>&#160;        minStepSize = qwtDivideMajorStep( stepSize,</div>
<div class="line"><a name="l00458"></a><span class="lineno">  458</span>&#160;            maxMinSteps, intervalType );</div>
<div class="line"><a name="l00459"></a><span class="lineno">  459</span>&#160;    }</div>
<div class="line"><a name="l00460"></a><span class="lineno">  460</span>&#160; </div>
<div class="line"><a name="l00461"></a><span class="lineno">  461</span>&#160;    <span class="keywordtype">bool</span> daylightSaving = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00462"></a><span class="lineno">  462</span>&#160;    <span class="keywordflow">if</span> ( minDate.timeSpec() == Qt::LocalTime )</div>
<div class="line"><a name="l00463"></a><span class="lineno">  463</span>&#160;    {</div>
<div class="line"><a name="l00464"></a><span class="lineno">  464</span>&#160;        daylightSaving = intervalType &gt; <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a8e7a2f91f89423e446bfdaa1e01ebd2f">QwtDate::Hour</a>;</div>
<div class="line"><a name="l00465"></a><span class="lineno">  465</span>&#160;        <span class="keywordflow">if</span> ( intervalType == <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a8e7a2f91f89423e446bfdaa1e01ebd2f">QwtDate::Hour</a> )</div>
<div class="line"><a name="l00466"></a><span class="lineno">  466</span>&#160;        {</div>
<div class="line"><a name="l00467"></a><span class="lineno">  467</span>&#160;            daylightSaving = stepSize &gt; 1;</div>
<div class="line"><a name="l00468"></a><span class="lineno">  468</span>&#160;        }</div>
<div class="line"><a name="l00469"></a><span class="lineno">  469</span>&#160;    }</div>
<div class="line"><a name="l00470"></a><span class="lineno">  470</span>&#160; </div>
<div class="line"><a name="l00471"></a><span class="lineno">  471</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> s = qwtMsecsForType( intervalType ) / 1000;</div>
<div class="line"><a name="l00472"></a><span class="lineno">  472</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> secondsMajor = <span class="keyword">static_cast&lt;</span> <span class="keywordtype">int</span> <span class="keyword">&gt;</span>( stepSize * s );</div>
<div class="line"><a name="l00473"></a><span class="lineno">  473</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> secondsMinor = minStepSize * s;</div>
<div class="line"><a name="l00474"></a><span class="lineno">  474</span>&#160; </div>
<div class="line"><a name="l00475"></a><span class="lineno">  475</span>&#160;    <span class="comment">// UTC excludes daylight savings. So from the difference</span></div>
<div class="line"><a name="l00476"></a><span class="lineno">  476</span>&#160;    <span class="comment">// of a date and its UTC counterpart we can find out</span></div>
<div class="line"><a name="l00477"></a><span class="lineno">  477</span>&#160;    <span class="comment">// the daylight saving hours</span></div>
<div class="line"><a name="l00478"></a><span class="lineno">  478</span>&#160; </div>
<div class="line"><a name="l00479"></a><span class="lineno">  479</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> utcOffset = <a class="code" href="class_qwt_date.html#aeadce3496f631eae3a7e54749078c7a4">QwtDate::utcOffset</a>( minDate );</div>
<div class="line"><a name="l00480"></a><span class="lineno">  480</span>&#160;    <span class="keywordtype">double</span> dstOff = 0;</div>
<div class="line"><a name="l00481"></a><span class="lineno">  481</span>&#160; </div>
<div class="line"><a name="l00482"></a><span class="lineno">  482</span>&#160;    <a class="code" href="class_q_list.html">QList&lt; double &gt;</a> majorTicks;</div>
<div class="line"><a name="l00483"></a><span class="lineno">  483</span>&#160;    <a class="code" href="class_q_list.html">QList&lt; double &gt;</a> mediumTicks;</div>
<div class="line"><a name="l00484"></a><span class="lineno">  484</span>&#160;    <a class="code" href="class_q_list.html">QList&lt; double &gt;</a> minorTicks;</div>
<div class="line"><a name="l00485"></a><span class="lineno">  485</span>&#160; </div>
<div class="line"><a name="l00486"></a><span class="lineno">  486</span>&#160;    <span class="keywordflow">for</span> ( QDateTime dt = minDate; dt &lt;= maxDate;</div>
<div class="line"><a name="l00487"></a><span class="lineno">  487</span>&#160;        dt = dt.addSecs( secondsMajor ) )</div>
<div class="line"><a name="l00488"></a><span class="lineno">  488</span>&#160;    {</div>
<div class="line"><a name="l00489"></a><span class="lineno">  489</span>&#160;        <span class="keywordflow">if</span> ( !dt.isValid() )</div>
<div class="line"><a name="l00490"></a><span class="lineno">  490</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00491"></a><span class="lineno">  491</span>&#160; </div>
<div class="line"><a name="l00492"></a><span class="lineno">  492</span>&#160;        <span class="keywordtype">double</span> majorValue = <a class="code" href="class_qwt_date.html#afce10fd70f7a1ecac3f97776fb2dc46a">QwtDate::toDouble</a>( dt );</div>
<div class="line"><a name="l00493"></a><span class="lineno">  493</span>&#160; </div>
<div class="line"><a name="l00494"></a><span class="lineno">  494</span>&#160;        <span class="keywordflow">if</span> ( daylightSaving )</div>
<div class="line"><a name="l00495"></a><span class="lineno">  495</span>&#160;        {</div>
<div class="line"><a name="l00496"></a><span class="lineno">  496</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">double</span> offset = utcOffset - <a class="code" href="class_qwt_date.html#aeadce3496f631eae3a7e54749078c7a4">QwtDate::utcOffset</a>( dt );</div>
<div class="line"><a name="l00497"></a><span class="lineno">  497</span>&#160;            majorValue += offset * 1000.0;</div>
<div class="line"><a name="l00498"></a><span class="lineno">  498</span>&#160; </div>
<div class="line"><a name="l00499"></a><span class="lineno">  499</span>&#160;            <span class="keywordflow">if</span> ( offset &gt; dstOff )</div>
<div class="line"><a name="l00500"></a><span class="lineno">  500</span>&#160;            {</div>
<div class="line"><a name="l00501"></a><span class="lineno">  501</span>&#160;                <span class="comment">// we add some minor ticks for the DST hour,</span></div>
<div class="line"><a name="l00502"></a><span class="lineno">  502</span>&#160;                <span class="comment">// otherwise the ticks will be unaligned: 0, 2, 3, 5 ...</span></div>
<div class="line"><a name="l00503"></a><span class="lineno">  503</span>&#160;                minorTicks += qwtDstTicks(</div>
<div class="line"><a name="l00504"></a><span class="lineno">  504</span>&#160;                    dt, secondsMajor, qRound( secondsMinor ) );</div>
<div class="line"><a name="l00505"></a><span class="lineno">  505</span>&#160;            }</div>
<div class="line"><a name="l00506"></a><span class="lineno">  506</span>&#160; </div>
<div class="line"><a name="l00507"></a><span class="lineno">  507</span>&#160;            dstOff = offset;</div>
<div class="line"><a name="l00508"></a><span class="lineno">  508</span>&#160;        }</div>
<div class="line"><a name="l00509"></a><span class="lineno">  509</span>&#160; </div>
<div class="line"><a name="l00510"></a><span class="lineno">  510</span>&#160;        <span class="keywordflow">if</span> ( majorTicks.isEmpty() || majorTicks.last() != majorValue )</div>
<div class="line"><a name="l00511"></a><span class="lineno">  511</span>&#160;            majorTicks += majorValue;</div>
<div class="line"><a name="l00512"></a><span class="lineno">  512</span>&#160; </div>
<div class="line"><a name="l00513"></a><span class="lineno">  513</span>&#160;        <span class="keywordflow">if</span> ( secondsMinor &gt; 0.0 )</div>
<div class="line"><a name="l00514"></a><span class="lineno">  514</span>&#160;        {</div>
<div class="line"><a name="l00515"></a><span class="lineno">  515</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">int</span> numMinorSteps = qwtFloor( secondsMajor / secondsMinor );</div>
<div class="line"><a name="l00516"></a><span class="lineno">  516</span>&#160; </div>
<div class="line"><a name="l00517"></a><span class="lineno">  517</span>&#160;            <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 1; i &lt; numMinorSteps; i++ )</div>
<div class="line"><a name="l00518"></a><span class="lineno">  518</span>&#160;            {</div>
<div class="line"><a name="l00519"></a><span class="lineno">  519</span>&#160;                <span class="keyword">const</span> QDateTime mt = dt.addMSecs(</div>
<div class="line"><a name="l00520"></a><span class="lineno">  520</span>&#160;                    qRound64( i * secondsMinor * 1000 ) );</div>
<div class="line"><a name="l00521"></a><span class="lineno">  521</span>&#160; </div>
<div class="line"><a name="l00522"></a><span class="lineno">  522</span>&#160;                <span class="keywordtype">double</span> minorValue = <a class="code" href="class_qwt_date.html#afce10fd70f7a1ecac3f97776fb2dc46a">QwtDate::toDouble</a>( mt );</div>
<div class="line"><a name="l00523"></a><span class="lineno">  523</span>&#160;                <span class="keywordflow">if</span> ( daylightSaving )</div>
<div class="line"><a name="l00524"></a><span class="lineno">  524</span>&#160;                {</div>
<div class="line"><a name="l00525"></a><span class="lineno">  525</span>&#160;                    <span class="keyword">const</span> <span class="keywordtype">double</span> offset = utcOffset - <a class="code" href="class_qwt_date.html#aeadce3496f631eae3a7e54749078c7a4">QwtDate::utcOffset</a>( mt );</div>
<div class="line"><a name="l00526"></a><span class="lineno">  526</span>&#160;                    minorValue += offset * 1000.0;</div>
<div class="line"><a name="l00527"></a><span class="lineno">  527</span>&#160;                }</div>
<div class="line"><a name="l00528"></a><span class="lineno">  528</span>&#160; </div>
<div class="line"><a name="l00529"></a><span class="lineno">  529</span>&#160;                <span class="keywordflow">if</span> ( minorTicks.isEmpty() || minorTicks.last() != minorValue )</div>
<div class="line"><a name="l00530"></a><span class="lineno">  530</span>&#160;                {</div>
<div class="line"><a name="l00531"></a><span class="lineno">  531</span>&#160;                    <span class="keyword">const</span> <span class="keywordtype">bool</span> isMedium = ( numMinorSteps % 2 == 0 )</div>
<div class="line"><a name="l00532"></a><span class="lineno">  532</span>&#160;                        &amp;&amp; ( i != 1 ) &amp;&amp; ( i == numMinorSteps / 2 );</div>
<div class="line"><a name="l00533"></a><span class="lineno">  533</span>&#160; </div>
<div class="line"><a name="l00534"></a><span class="lineno">  534</span>&#160;                    <span class="keywordflow">if</span> ( isMedium )</div>
<div class="line"><a name="l00535"></a><span class="lineno">  535</span>&#160;                        mediumTicks += minorValue;</div>
<div class="line"><a name="l00536"></a><span class="lineno">  536</span>&#160;                    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00537"></a><span class="lineno">  537</span>&#160;                        minorTicks += minorValue;</div>
<div class="line"><a name="l00538"></a><span class="lineno">  538</span>&#160;                }</div>
<div class="line"><a name="l00539"></a><span class="lineno">  539</span>&#160;            }</div>
<div class="line"><a name="l00540"></a><span class="lineno">  540</span>&#160;        }</div>
<div class="line"><a name="l00541"></a><span class="lineno">  541</span>&#160;    }</div>
<div class="line"><a name="l00542"></a><span class="lineno">  542</span>&#160; </div>
<div class="line"><a name="l00543"></a><span class="lineno">  543</span>&#160;    <a class="code" href="class_qwt_scale_div.html">QwtScaleDiv</a> scaleDiv;</div>
<div class="line"><a name="l00544"></a><span class="lineno">  544</span>&#160; </div>
<div class="line"><a name="l00545"></a><span class="lineno">  545</span>&#160;    scaleDiv.<a class="code" href="class_qwt_scale_div.html#aa5c61a5fef5f83f2735e4e1b8e545f0b">setInterval</a>( <a class="code" href="class_qwt_date.html#afce10fd70f7a1ecac3f97776fb2dc46a">QwtDate::toDouble</a>( minDate ),</div>
<div class="line"><a name="l00546"></a><span class="lineno">  546</span>&#160;        <a class="code" href="class_qwt_date.html#afce10fd70f7a1ecac3f97776fb2dc46a">QwtDate::toDouble</a>( maxDate ) );</div>
<div class="line"><a name="l00547"></a><span class="lineno">  547</span>&#160; </div>
<div class="line"><a name="l00548"></a><span class="lineno">  548</span>&#160;    scaleDiv.<a class="code" href="class_qwt_scale_div.html#af67401fd5d16138eddede3381c559964">setTicks</a>( <a class="code" href="class_qwt_scale_div.html#af21aedaa886dd5e067cf63505838736cadda390d4186a0ff20ece95d986c1ae60">QwtScaleDiv::MajorTick</a>, majorTicks );</div>
<div class="line"><a name="l00549"></a><span class="lineno">  549</span>&#160;    scaleDiv.<a class="code" href="class_qwt_scale_div.html#af67401fd5d16138eddede3381c559964">setTicks</a>( <a class="code" href="class_qwt_scale_div.html#af21aedaa886dd5e067cf63505838736ca42fbe3ad54900057e75225ff5e68cc4a">QwtScaleDiv::MediumTick</a>, mediumTicks );</div>
<div class="line"><a name="l00550"></a><span class="lineno">  550</span>&#160;    scaleDiv.<a class="code" href="class_qwt_scale_div.html#af67401fd5d16138eddede3381c559964">setTicks</a>( <a class="code" href="class_qwt_scale_div.html#af21aedaa886dd5e067cf63505838736ca6af9f3b95636a6fdebb4824c6db0ab9e">QwtScaleDiv::MinorTick</a>, minorTicks );</div>
<div class="line"><a name="l00551"></a><span class="lineno">  551</span>&#160; </div>
<div class="line"><a name="l00552"></a><span class="lineno">  552</span>&#160;    <span class="keywordflow">return</span> scaleDiv;</div>
<div class="line"><a name="l00553"></a><span class="lineno">  553</span>&#160;}</div>
<div class="line"><a name="l00554"></a><span class="lineno">  554</span>&#160; </div>
<div class="line"><a name="l00555"></a><span class="lineno">  555</span>&#160;<span class="keyword">static</span> <a class="code" href="class_qwt_scale_div.html">QwtScaleDiv</a> qwtDivideToMonths(</div>
<div class="line"><a name="l00556"></a><span class="lineno">  556</span>&#160;    QDateTime&amp; minDate, <span class="keyword">const</span> QDateTime&amp; maxDate,</div>
<div class="line"><a name="l00557"></a><span class="lineno">  557</span>&#160;    <span class="keywordtype">double</span> stepSize, <span class="keywordtype">int</span> maxMinSteps )</div>
<div class="line"><a name="l00558"></a><span class="lineno">  558</span>&#160;{</div>
<div class="line"><a name="l00559"></a><span class="lineno">  559</span>&#160;    <span class="comment">// months are intervals with non</span></div>
<div class="line"><a name="l00560"></a><span class="lineno">  560</span>&#160;    <span class="comment">// equidistant ( in ms ) steps: we have to build the</span></div>
<div class="line"><a name="l00561"></a><span class="lineno">  561</span>&#160;    <span class="comment">// scale division manually</span></div>
<div class="line"><a name="l00562"></a><span class="lineno">  562</span>&#160; </div>
<div class="line"><a name="l00563"></a><span class="lineno">  563</span>&#160;    <span class="keywordtype">int</span> minStepDays = 0;</div>
<div class="line"><a name="l00564"></a><span class="lineno">  564</span>&#160;    <span class="keywordtype">int</span> minStepSize = 0.0;</div>
<div class="line"><a name="l00565"></a><span class="lineno">  565</span>&#160; </div>
<div class="line"><a name="l00566"></a><span class="lineno">  566</span>&#160;    <span class="keywordflow">if</span> ( maxMinSteps &gt; 1 )</div>
<div class="line"><a name="l00567"></a><span class="lineno">  567</span>&#160;    {</div>
<div class="line"><a name="l00568"></a><span class="lineno">  568</span>&#160;        <span class="keywordflow">if</span> ( stepSize == 1 )</div>
<div class="line"><a name="l00569"></a><span class="lineno">  569</span>&#160;        {</div>
<div class="line"><a name="l00570"></a><span class="lineno">  570</span>&#160;            <span class="keywordflow">if</span> ( maxMinSteps &gt;= 30 )</div>
<div class="line"><a name="l00571"></a><span class="lineno">  571</span>&#160;                minStepDays = 1;</div>
<div class="line"><a name="l00572"></a><span class="lineno">  572</span>&#160;            <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( maxMinSteps &gt;= 6 )</div>
<div class="line"><a name="l00573"></a><span class="lineno">  573</span>&#160;                minStepDays = 5;</div>
<div class="line"><a name="l00574"></a><span class="lineno">  574</span>&#160;            <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( maxMinSteps &gt;= 3 )</div>
<div class="line"><a name="l00575"></a><span class="lineno">  575</span>&#160;                minStepDays = 10;</div>
<div class="line"><a name="l00576"></a><span class="lineno">  576</span>&#160;            <span class="keywordflow">else</span></div>
<div class="line"><a name="l00577"></a><span class="lineno">  577</span>&#160;                minStepDays = 15;</div>
<div class="line"><a name="l00578"></a><span class="lineno">  578</span>&#160;        }</div>
<div class="line"><a name="l00579"></a><span class="lineno">  579</span>&#160;        <span class="keywordflow">else</span></div>
<div class="line"><a name="l00580"></a><span class="lineno">  580</span>&#160;        {</div>
<div class="line"><a name="l00581"></a><span class="lineno">  581</span>&#160;            minStepSize = qwtDivideMajorStep(</div>
<div class="line"><a name="l00582"></a><span class="lineno">  582</span>&#160;                stepSize, maxMinSteps, <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a0ab43f35f1bdbae7536be2be0455700a">QwtDate::Month</a> );</div>
<div class="line"><a name="l00583"></a><span class="lineno">  583</span>&#160;        }</div>
<div class="line"><a name="l00584"></a><span class="lineno">  584</span>&#160;    }</div>
<div class="line"><a name="l00585"></a><span class="lineno">  585</span>&#160; </div>
<div class="line"><a name="l00586"></a><span class="lineno">  586</span>&#160;    <a class="code" href="class_q_list.html">QList&lt; double &gt;</a> majorTicks;</div>
<div class="line"><a name="l00587"></a><span class="lineno">  587</span>&#160;    <a class="code" href="class_q_list.html">QList&lt; double &gt;</a> mediumTicks;</div>
<div class="line"><a name="l00588"></a><span class="lineno">  588</span>&#160;    <a class="code" href="class_q_list.html">QList&lt; double &gt;</a> minorTicks;</div>
<div class="line"><a name="l00589"></a><span class="lineno">  589</span>&#160; </div>
<div class="line"><a name="l00590"></a><span class="lineno">  590</span>&#160;    <span class="keywordflow">for</span> ( QDateTime dt = minDate;</div>
<div class="line"><a name="l00591"></a><span class="lineno">  591</span>&#160;        dt &lt;= maxDate; dt = dt.addMonths( stepSize ) )</div>
<div class="line"><a name="l00592"></a><span class="lineno">  592</span>&#160;    {</div>
<div class="line"><a name="l00593"></a><span class="lineno">  593</span>&#160;        <span class="keywordflow">if</span> ( !dt.isValid() )</div>
<div class="line"><a name="l00594"></a><span class="lineno">  594</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00595"></a><span class="lineno">  595</span>&#160; </div>
<div class="line"><a name="l00596"></a><span class="lineno">  596</span>&#160;        majorTicks += <a class="code" href="class_qwt_date.html#afce10fd70f7a1ecac3f97776fb2dc46a">QwtDate::toDouble</a>( dt );</div>
<div class="line"><a name="l00597"></a><span class="lineno">  597</span>&#160; </div>
<div class="line"><a name="l00598"></a><span class="lineno">  598</span>&#160;        <span class="keywordflow">if</span> ( minStepDays &gt; 0 )</div>
<div class="line"><a name="l00599"></a><span class="lineno">  599</span>&#160;        {</div>
<div class="line"><a name="l00600"></a><span class="lineno">  600</span>&#160;            <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> days = minStepDays;</div>
<div class="line"><a name="l00601"></a><span class="lineno">  601</span>&#160;                days &lt; 30; days += minStepDays )</div>
<div class="line"><a name="l00602"></a><span class="lineno">  602</span>&#160;            {</div>
<div class="line"><a name="l00603"></a><span class="lineno">  603</span>&#160;                <span class="keyword">const</span> <span class="keywordtype">double</span> tick = <a class="code" href="class_qwt_date.html#afce10fd70f7a1ecac3f97776fb2dc46a">QwtDate::toDouble</a>( dt.addDays( days ) );</div>
<div class="line"><a name="l00604"></a><span class="lineno">  604</span>&#160; </div>
<div class="line"><a name="l00605"></a><span class="lineno">  605</span>&#160;                <span class="keywordflow">if</span> ( days == 15 &amp;&amp; minStepDays != 15 )</div>
<div class="line"><a name="l00606"></a><span class="lineno">  606</span>&#160;                    mediumTicks += tick;</div>
<div class="line"><a name="l00607"></a><span class="lineno">  607</span>&#160;                <span class="keywordflow">else</span></div>
<div class="line"><a name="l00608"></a><span class="lineno">  608</span>&#160;                    minorTicks += tick;</div>
<div class="line"><a name="l00609"></a><span class="lineno">  609</span>&#160;            }</div>
<div class="line"><a name="l00610"></a><span class="lineno">  610</span>&#160;        }</div>
<div class="line"><a name="l00611"></a><span class="lineno">  611</span>&#160;        <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( minStepSize &gt; 0.0 )</div>
<div class="line"><a name="l00612"></a><span class="lineno">  612</span>&#160;        {</div>
<div class="line"><a name="l00613"></a><span class="lineno">  613</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">int</span> numMinorSteps = qRound( stepSize / (<span class="keywordtype">double</span>) minStepSize );</div>
<div class="line"><a name="l00614"></a><span class="lineno">  614</span>&#160; </div>
<div class="line"><a name="l00615"></a><span class="lineno">  615</span>&#160;            <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 1; i &lt; numMinorSteps; i++ )</div>
<div class="line"><a name="l00616"></a><span class="lineno">  616</span>&#160;            {</div>
<div class="line"><a name="l00617"></a><span class="lineno">  617</span>&#160;                <span class="keyword">const</span> <span class="keywordtype">double</span> minorValue =</div>
<div class="line"><a name="l00618"></a><span class="lineno">  618</span>&#160;                    <a class="code" href="class_qwt_date.html#afce10fd70f7a1ecac3f97776fb2dc46a">QwtDate::toDouble</a>( dt.addMonths( i * minStepSize ) );</div>
<div class="line"><a name="l00619"></a><span class="lineno">  619</span>&#160; </div>
<div class="line"><a name="l00620"></a><span class="lineno">  620</span>&#160;                <span class="keywordflow">if</span> ( ( numMinorSteps % 2 == 0 ) &amp;&amp; ( i == numMinorSteps / 2 ) )</div>
<div class="line"><a name="l00621"></a><span class="lineno">  621</span>&#160;                    mediumTicks += minorValue;</div>
<div class="line"><a name="l00622"></a><span class="lineno">  622</span>&#160;                <span class="keywordflow">else</span></div>
<div class="line"><a name="l00623"></a><span class="lineno">  623</span>&#160;                    minorTicks += minorValue;</div>
<div class="line"><a name="l00624"></a><span class="lineno">  624</span>&#160;            }</div>
<div class="line"><a name="l00625"></a><span class="lineno">  625</span>&#160;        }</div>
<div class="line"><a name="l00626"></a><span class="lineno">  626</span>&#160;    }</div>
<div class="line"><a name="l00627"></a><span class="lineno">  627</span>&#160; </div>
<div class="line"><a name="l00628"></a><span class="lineno">  628</span>&#160;    <a class="code" href="class_qwt_scale_div.html">QwtScaleDiv</a> scaleDiv;</div>
<div class="line"><a name="l00629"></a><span class="lineno">  629</span>&#160;    scaleDiv.<a class="code" href="class_qwt_scale_div.html#aa5c61a5fef5f83f2735e4e1b8e545f0b">setInterval</a>( <a class="code" href="class_qwt_date.html#afce10fd70f7a1ecac3f97776fb2dc46a">QwtDate::toDouble</a>( minDate ),</div>
<div class="line"><a name="l00630"></a><span class="lineno">  630</span>&#160;        <a class="code" href="class_qwt_date.html#afce10fd70f7a1ecac3f97776fb2dc46a">QwtDate::toDouble</a>( maxDate ) );</div>
<div class="line"><a name="l00631"></a><span class="lineno">  631</span>&#160; </div>
<div class="line"><a name="l00632"></a><span class="lineno">  632</span>&#160;    scaleDiv.<a class="code" href="class_qwt_scale_div.html#af67401fd5d16138eddede3381c559964">setTicks</a>( <a class="code" href="class_qwt_scale_div.html#af21aedaa886dd5e067cf63505838736cadda390d4186a0ff20ece95d986c1ae60">QwtScaleDiv::MajorTick</a>, majorTicks );</div>
<div class="line"><a name="l00633"></a><span class="lineno">  633</span>&#160;    scaleDiv.<a class="code" href="class_qwt_scale_div.html#af67401fd5d16138eddede3381c559964">setTicks</a>( <a class="code" href="class_qwt_scale_div.html#af21aedaa886dd5e067cf63505838736ca42fbe3ad54900057e75225ff5e68cc4a">QwtScaleDiv::MediumTick</a>, mediumTicks );</div>
<div class="line"><a name="l00634"></a><span class="lineno">  634</span>&#160;    scaleDiv.<a class="code" href="class_qwt_scale_div.html#af67401fd5d16138eddede3381c559964">setTicks</a>( <a class="code" href="class_qwt_scale_div.html#af21aedaa886dd5e067cf63505838736ca6af9f3b95636a6fdebb4824c6db0ab9e">QwtScaleDiv::MinorTick</a>, minorTicks );</div>
<div class="line"><a name="l00635"></a><span class="lineno">  635</span>&#160; </div>
<div class="line"><a name="l00636"></a><span class="lineno">  636</span>&#160;    <span class="keywordflow">return</span> scaleDiv;</div>
<div class="line"><a name="l00637"></a><span class="lineno">  637</span>&#160;}</div>
<div class="line"><a name="l00638"></a><span class="lineno">  638</span>&#160; </div>
<div class="line"><a name="l00639"></a><span class="lineno">  639</span>&#160;<span class="keyword">static</span> <a class="code" href="class_qwt_scale_div.html">QwtScaleDiv</a> qwtDivideToYears(</div>
<div class="line"><a name="l00640"></a><span class="lineno">  640</span>&#160;    <span class="keyword">const</span> QDateTime&amp; minDate, <span class="keyword">const</span> QDateTime&amp; maxDate,</div>
<div class="line"><a name="l00641"></a><span class="lineno">  641</span>&#160;    <span class="keywordtype">double</span> stepSize, <span class="keywordtype">int</span> maxMinSteps )</div>
<div class="line"><a name="l00642"></a><span class="lineno">  642</span>&#160;{</div>
<div class="line"><a name="l00643"></a><span class="lineno">  643</span>&#160;    <a class="code" href="class_q_list.html">QList&lt; double &gt;</a> majorTicks;</div>
<div class="line"><a name="l00644"></a><span class="lineno">  644</span>&#160;    <a class="code" href="class_q_list.html">QList&lt; double &gt;</a> mediumTicks;</div>
<div class="line"><a name="l00645"></a><span class="lineno">  645</span>&#160;    <a class="code" href="class_q_list.html">QList&lt; double &gt;</a> minorTicks;</div>
<div class="line"><a name="l00646"></a><span class="lineno">  646</span>&#160; </div>
<div class="line"><a name="l00647"></a><span class="lineno">  647</span>&#160;    <span class="keywordtype">double</span> minStepSize = 0.0;</div>
<div class="line"><a name="l00648"></a><span class="lineno">  648</span>&#160; </div>
<div class="line"><a name="l00649"></a><span class="lineno">  649</span>&#160;    <span class="keywordflow">if</span> ( maxMinSteps &gt; 1 )</div>
<div class="line"><a name="l00650"></a><span class="lineno">  650</span>&#160;    {</div>
<div class="line"><a name="l00651"></a><span class="lineno">  651</span>&#160;        minStepSize = qwtDivideMajorStep(</div>
<div class="line"><a name="l00652"></a><span class="lineno">  652</span>&#160;            stepSize, maxMinSteps, <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587ae306523ed94ccf930afb811ff7a735ab">QwtDate::Year</a> );</div>
<div class="line"><a name="l00653"></a><span class="lineno">  653</span>&#160;    }</div>
<div class="line"><a name="l00654"></a><span class="lineno">  654</span>&#160; </div>
<div class="line"><a name="l00655"></a><span class="lineno">  655</span>&#160;    <span class="keywordtype">int</span> numMinorSteps = 0;</div>
<div class="line"><a name="l00656"></a><span class="lineno">  656</span>&#160;    <span class="keywordflow">if</span> ( minStepSize &gt; 0.0 )</div>
<div class="line"><a name="l00657"></a><span class="lineno">  657</span>&#160;        numMinorSteps = qwtFloor( stepSize / minStepSize );</div>
<div class="line"><a name="l00658"></a><span class="lineno">  658</span>&#160; </div>
<div class="line"><a name="l00659"></a><span class="lineno">  659</span>&#160;    <span class="keywordtype">bool</span> dateBC = minDate.date().year() &lt; -1;</div>
<div class="line"><a name="l00660"></a><span class="lineno">  660</span>&#160; </div>
<div class="line"><a name="l00661"></a><span class="lineno">  661</span>&#160;    <span class="keywordflow">for</span> ( QDateTime dt = minDate; dt &lt;= maxDate;</div>
<div class="line"><a name="l00662"></a><span class="lineno">  662</span>&#160;        dt = dt.addYears( stepSize ) )</div>
<div class="line"><a name="l00663"></a><span class="lineno">  663</span>&#160;    {</div>
<div class="line"><a name="l00664"></a><span class="lineno">  664</span>&#160;        <span class="keywordflow">if</span> ( dateBC &amp;&amp; dt.date().year() &gt; 1 )</div>
<div class="line"><a name="l00665"></a><span class="lineno">  665</span>&#160;        {</div>
<div class="line"><a name="l00666"></a><span class="lineno">  666</span>&#160;            <span class="comment">// there is no year 0 in the Julian calendar</span></div>
<div class="line"><a name="l00667"></a><span class="lineno">  667</span>&#160;            dt = dt.addYears( -1 );</div>
<div class="line"><a name="l00668"></a><span class="lineno">  668</span>&#160;            dateBC = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00669"></a><span class="lineno">  669</span>&#160;        }</div>
<div class="line"><a name="l00670"></a><span class="lineno">  670</span>&#160; </div>
<div class="line"><a name="l00671"></a><span class="lineno">  671</span>&#160;        <span class="keywordflow">if</span> ( !dt.isValid() )</div>
<div class="line"><a name="l00672"></a><span class="lineno">  672</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00673"></a><span class="lineno">  673</span>&#160; </div>
<div class="line"><a name="l00674"></a><span class="lineno">  674</span>&#160;        majorTicks += <a class="code" href="class_qwt_date.html#afce10fd70f7a1ecac3f97776fb2dc46a">QwtDate::toDouble</a>( dt );</div>
<div class="line"><a name="l00675"></a><span class="lineno">  675</span>&#160; </div>
<div class="line"><a name="l00676"></a><span class="lineno">  676</span>&#160;        <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 1; i &lt; numMinorSteps; i++ )</div>
<div class="line"><a name="l00677"></a><span class="lineno">  677</span>&#160;        {</div>
<div class="line"><a name="l00678"></a><span class="lineno">  678</span>&#160;            QDateTime tickDate;</div>
<div class="line"><a name="l00679"></a><span class="lineno">  679</span>&#160; </div>
<div class="line"><a name="l00680"></a><span class="lineno">  680</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">double</span> years = qRound( i * minStepSize );</div>
<div class="line"><a name="l00681"></a><span class="lineno">  681</span>&#160;            <span class="keywordflow">if</span> ( years &gt;= std::numeric_limits&lt; int &gt;::max() / 12 )</div>
<div class="line"><a name="l00682"></a><span class="lineno">  682</span>&#160;            {</div>
<div class="line"><a name="l00683"></a><span class="lineno">  683</span>&#160;                tickDate = dt.addYears( years );</div>
<div class="line"><a name="l00684"></a><span class="lineno">  684</span>&#160;            }</div>
<div class="line"><a name="l00685"></a><span class="lineno">  685</span>&#160;            <span class="keywordflow">else</span></div>
<div class="line"><a name="l00686"></a><span class="lineno">  686</span>&#160;            {</div>
<div class="line"><a name="l00687"></a><span class="lineno">  687</span>&#160;                tickDate = dt.addMonths( qRound( years * 12 ) );</div>
<div class="line"><a name="l00688"></a><span class="lineno">  688</span>&#160;            }</div>
<div class="line"><a name="l00689"></a><span class="lineno">  689</span>&#160; </div>
<div class="line"><a name="l00690"></a><span class="lineno">  690</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">bool</span> isMedium = ( numMinorSteps &gt; 2 ) &amp;&amp;</div>
<div class="line"><a name="l00691"></a><span class="lineno">  691</span>&#160;                ( numMinorSteps % 2 == 0 ) &amp;&amp; ( i == numMinorSteps / 2 );</div>
<div class="line"><a name="l00692"></a><span class="lineno">  692</span>&#160; </div>
<div class="line"><a name="l00693"></a><span class="lineno">  693</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">double</span> minorValue = <a class="code" href="class_qwt_date.html#afce10fd70f7a1ecac3f97776fb2dc46a">QwtDate::toDouble</a>( tickDate );</div>
<div class="line"><a name="l00694"></a><span class="lineno">  694</span>&#160;            <span class="keywordflow">if</span> ( isMedium )</div>
<div class="line"><a name="l00695"></a><span class="lineno">  695</span>&#160;                mediumTicks += minorValue;</div>
<div class="line"><a name="l00696"></a><span class="lineno">  696</span>&#160;            <span class="keywordflow">else</span></div>
<div class="line"><a name="l00697"></a><span class="lineno">  697</span>&#160;                minorTicks += minorValue;</div>
<div class="line"><a name="l00698"></a><span class="lineno">  698</span>&#160;        }</div>
<div class="line"><a name="l00699"></a><span class="lineno">  699</span>&#160; </div>
<div class="line"><a name="l00700"></a><span class="lineno">  700</span>&#160;        <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_date.html#af82ba26011550602f1adb61da53bd830">QwtDate::maxDate</a>().addYears( -stepSize ) &lt; dt.date() )</div>
<div class="line"><a name="l00701"></a><span class="lineno">  701</span>&#160;        {</div>
<div class="line"><a name="l00702"></a><span class="lineno">  702</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00703"></a><span class="lineno">  703</span>&#160;        }</div>
<div class="line"><a name="l00704"></a><span class="lineno">  704</span>&#160;    }</div>
<div class="line"><a name="l00705"></a><span class="lineno">  705</span>&#160; </div>
<div class="line"><a name="l00706"></a><span class="lineno">  706</span>&#160;    <a class="code" href="class_qwt_scale_div.html">QwtScaleDiv</a> scaleDiv;</div>
<div class="line"><a name="l00707"></a><span class="lineno">  707</span>&#160;    scaleDiv.<a class="code" href="class_qwt_scale_div.html#aa5c61a5fef5f83f2735e4e1b8e545f0b">setInterval</a>( <a class="code" href="class_qwt_date.html#afce10fd70f7a1ecac3f97776fb2dc46a">QwtDate::toDouble</a>( minDate ),</div>
<div class="line"><a name="l00708"></a><span class="lineno">  708</span>&#160;        <a class="code" href="class_qwt_date.html#afce10fd70f7a1ecac3f97776fb2dc46a">QwtDate::toDouble</a>( maxDate ) );</div>
<div class="line"><a name="l00709"></a><span class="lineno">  709</span>&#160; </div>
<div class="line"><a name="l00710"></a><span class="lineno">  710</span>&#160;    scaleDiv.<a class="code" href="class_qwt_scale_div.html#af67401fd5d16138eddede3381c559964">setTicks</a>( <a class="code" href="class_qwt_scale_div.html#af21aedaa886dd5e067cf63505838736cadda390d4186a0ff20ece95d986c1ae60">QwtScaleDiv::MajorTick</a>, majorTicks );</div>
<div class="line"><a name="l00711"></a><span class="lineno">  711</span>&#160;    scaleDiv.<a class="code" href="class_qwt_scale_div.html#af67401fd5d16138eddede3381c559964">setTicks</a>( <a class="code" href="class_qwt_scale_div.html#af21aedaa886dd5e067cf63505838736ca42fbe3ad54900057e75225ff5e68cc4a">QwtScaleDiv::MediumTick</a>, mediumTicks );</div>
<div class="line"><a name="l00712"></a><span class="lineno">  712</span>&#160;    scaleDiv.<a class="code" href="class_qwt_scale_div.html#af67401fd5d16138eddede3381c559964">setTicks</a>( <a class="code" href="class_qwt_scale_div.html#af21aedaa886dd5e067cf63505838736ca6af9f3b95636a6fdebb4824c6db0ab9e">QwtScaleDiv::MinorTick</a>, minorTicks );</div>
<div class="line"><a name="l00713"></a><span class="lineno">  713</span>&#160; </div>
<div class="line"><a name="l00714"></a><span class="lineno">  714</span>&#160;    <span class="keywordflow">return</span> scaleDiv;</div>
<div class="line"><a name="l00715"></a><span class="lineno">  715</span>&#160;}</div>
<div class="line"><a name="l00716"></a><span class="lineno">  716</span>&#160; </div>
<div class="line"><a name="l00717"></a><span class="lineno">  717</span>&#160;<span class="keyword">class </span>QwtDateScaleEngine::PrivateData</div>
<div class="line"><a name="l00718"></a><span class="lineno">  718</span>&#160;{</div>
<div class="line"><a name="l00719"></a><span class="lineno">  719</span>&#160;  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00720"></a><span class="lineno">  720</span>&#160;    <span class="keyword">explicit</span> PrivateData( Qt::TimeSpec spec )</div>
<div class="line"><a name="l00721"></a><span class="lineno">  721</span>&#160;        : <a class="code" href="class_qwt_date_scale_engine.html#a700136426d75d2d0af3fb36bdd400de9">timeSpec</a>( spec )</div>
<div class="line"><a name="l00722"></a><span class="lineno">  722</span>&#160;        , <a class="code" href="class_qwt_date_scale_engine.html#abf679a002385bc9c56f3411d2b7de207">utcOffset</a>( 0 )</div>
<div class="line"><a name="l00723"></a><span class="lineno">  723</span>&#160;        , <a class="code" href="class_qwt_date_scale_engine.html#a0a69813a80c2d4c18e1d69badba32897">week0Type</a>( <a class="code" href="class_qwt_date.html">QwtDate</a>::FirstThursday )</div>
<div class="line"><a name="l00724"></a><span class="lineno">  724</span>&#160;        , <a class="code" href="class_qwt_date_scale_engine.html#af3bd09d6cfc4b5e676b10fb2ce288ffc">maxWeeks</a>( 4 )</div>
<div class="line"><a name="l00725"></a><span class="lineno">  725</span>&#160;    {</div>
<div class="line"><a name="l00726"></a><span class="lineno">  726</span>&#160;    }</div>
<div class="line"><a name="l00727"></a><span class="lineno">  727</span>&#160; </div>
<div class="line"><a name="l00728"></a><span class="lineno">  728</span>&#160;    Qt::TimeSpec <a class="code" href="class_qwt_date_scale_engine.html#a700136426d75d2d0af3fb36bdd400de9">timeSpec</a>;</div>
<div class="line"><a name="l00729"></a><span class="lineno">  729</span>&#160;    <span class="keywordtype">int</span> <a class="code" href="class_qwt_date_scale_engine.html#abf679a002385bc9c56f3411d2b7de207">utcOffset</a>;</div>
<div class="line"><a name="l00730"></a><span class="lineno">  730</span>&#160;    <a class="code" href="class_qwt_date.html#ab915db512c556a4666ada4fbfccfce1e">QwtDate::Week0Type</a> <a class="code" href="class_qwt_date_scale_engine.html#a0a69813a80c2d4c18e1d69badba32897">week0Type</a>;</div>
<div class="line"><a name="l00731"></a><span class="lineno">  731</span>&#160;    <span class="keywordtype">int</span> <a class="code" href="class_qwt_date_scale_engine.html#af3bd09d6cfc4b5e676b10fb2ce288ffc">maxWeeks</a>;</div>
<div class="line"><a name="l00732"></a><span class="lineno">  732</span>&#160;};</div>
<div class="line"><a name="l00733"></a><span class="lineno">  733</span>&#160; </div>
<div class="line"><a name="l00734"></a><span class="lineno">  734</span>&#160; </div>
<div class="line"><a name="l00747"></a><span class="lineno"><a class="line" href="class_qwt_date_scale_engine.html#a7eb99ee3e701d6f8467b1e9c8c248b9b">  747</a></span>&#160;<a class="code" href="class_qwt_date_scale_engine.html#a7eb99ee3e701d6f8467b1e9c8c248b9b">QwtDateScaleEngine::QwtDateScaleEngine</a>( Qt::TimeSpec timeSpec )</div>
<div class="line"><a name="l00748"></a><span class="lineno">  748</span>&#160;    : <a class="code" href="class_qwt_linear_scale_engine.html">QwtLinearScaleEngine</a>( 10 )</div>
<div class="line"><a name="l00749"></a><span class="lineno">  749</span>&#160;{</div>
<div class="line"><a name="l00750"></a><span class="lineno">  750</span>&#160;    m_data = <span class="keyword">new</span> PrivateData( <a class="code" href="class_qwt_date_scale_engine.html#a700136426d75d2d0af3fb36bdd400de9">timeSpec</a> );</div>
<div class="line"><a name="l00751"></a><span class="lineno">  751</span>&#160;}</div>
<div class="line"><a name="l00752"></a><span class="lineno">  752</span>&#160; </div>
<div class="line"><a name="l00754"></a><span class="lineno"><a class="line" href="class_qwt_date_scale_engine.html#a1e1d01f5ac297bcdb1458a35bcd8d554">  754</a></span>&#160;<a class="code" href="class_qwt_date_scale_engine.html#a1e1d01f5ac297bcdb1458a35bcd8d554">QwtDateScaleEngine::~QwtDateScaleEngine</a>()</div>
<div class="line"><a name="l00755"></a><span class="lineno">  755</span>&#160;{</div>
<div class="line"><a name="l00756"></a><span class="lineno">  756</span>&#160;    <span class="keyword">delete</span> m_data;</div>
<div class="line"><a name="l00757"></a><span class="lineno">  757</span>&#160;}</div>
<div class="line"><a name="l00758"></a><span class="lineno">  758</span>&#160; </div>
<div class="line"><a name="l00765"></a><span class="lineno"><a class="line" href="class_qwt_date_scale_engine.html#addbf8fdc00c2de0c6afe436ef25b3bef">  765</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_date_scale_engine.html#addbf8fdc00c2de0c6afe436ef25b3bef">QwtDateScaleEngine::setTimeSpec</a>( Qt::TimeSpec timeSpec )</div>
<div class="line"><a name="l00766"></a><span class="lineno">  766</span>&#160;{</div>
<div class="line"><a name="l00767"></a><span class="lineno">  767</span>&#160;    m_data-&gt;timeSpec = <a class="code" href="class_qwt_date_scale_engine.html#a700136426d75d2d0af3fb36bdd400de9">timeSpec</a>;</div>
<div class="line"><a name="l00768"></a><span class="lineno">  768</span>&#160;}</div>
<div class="line"><a name="l00769"></a><span class="lineno">  769</span>&#160; </div>
<div class="line"><a name="l00774"></a><span class="lineno"><a class="line" href="class_qwt_date_scale_engine.html#a700136426d75d2d0af3fb36bdd400de9">  774</a></span>&#160;Qt::TimeSpec <a class="code" href="class_qwt_date_scale_engine.html#a700136426d75d2d0af3fb36bdd400de9">QwtDateScaleEngine::timeSpec</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00775"></a><span class="lineno">  775</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00776"></a><span class="lineno">  776</span>&#160;    <span class="keywordflow">return</span> m_data-&gt;timeSpec;</div>
<div class="line"><a name="l00777"></a><span class="lineno">  777</span>&#160;}</div>
<div class="line"><a name="l00778"></a><span class="lineno">  778</span>&#160; </div>
<div class="line"><a name="l00789"></a><span class="lineno"><a class="line" href="class_qwt_date_scale_engine.html#a47dc382bbdf3e415b40543fc2736537f">  789</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_date_scale_engine.html#a47dc382bbdf3e415b40543fc2736537f">QwtDateScaleEngine::setUtcOffset</a>( <span class="keywordtype">int</span> seconds )</div>
<div class="line"><a name="l00790"></a><span class="lineno">  790</span>&#160;{</div>
<div class="line"><a name="l00791"></a><span class="lineno">  791</span>&#160;    m_data-&gt;utcOffset = seconds;</div>
<div class="line"><a name="l00792"></a><span class="lineno">  792</span>&#160;}</div>
<div class="line"><a name="l00793"></a><span class="lineno">  793</span>&#160; </div>
<div class="line"><a name="l00801"></a><span class="lineno"><a class="line" href="class_qwt_date_scale_engine.html#abf679a002385bc9c56f3411d2b7de207">  801</a></span>&#160;<span class="keywordtype">int</span> <a class="code" href="class_qwt_date_scale_engine.html#abf679a002385bc9c56f3411d2b7de207">QwtDateScaleEngine::utcOffset</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00802"></a><span class="lineno">  802</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00803"></a><span class="lineno">  803</span>&#160;    <span class="keywordflow">return</span> m_data-&gt;utcOffset;</div>
<div class="line"><a name="l00804"></a><span class="lineno">  804</span>&#160;}</div>
<div class="line"><a name="l00805"></a><span class="lineno">  805</span>&#160; </div>
<div class="line"><a name="l00815"></a><span class="lineno"><a class="line" href="class_qwt_date_scale_engine.html#a5e11c5e7c4f58063ded8f6d35d2816f4">  815</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_date_scale_engine.html#a5e11c5e7c4f58063ded8f6d35d2816f4">QwtDateScaleEngine::setWeek0Type</a>( <a class="code" href="class_qwt_date.html#ab915db512c556a4666ada4fbfccfce1e">QwtDate::Week0Type</a> week0Type )</div>
<div class="line"><a name="l00816"></a><span class="lineno">  816</span>&#160;{</div>
<div class="line"><a name="l00817"></a><span class="lineno">  817</span>&#160;    m_data-&gt;week0Type = <a class="code" href="class_qwt_date_scale_engine.html#a0a69813a80c2d4c18e1d69badba32897">week0Type</a>;</div>
<div class="line"><a name="l00818"></a><span class="lineno">  818</span>&#160;}</div>
<div class="line"><a name="l00819"></a><span class="lineno">  819</span>&#160; </div>
<div class="line"><a name="l00824"></a><span class="lineno"><a class="line" href="class_qwt_date_scale_engine.html#a0a69813a80c2d4c18e1d69badba32897">  824</a></span>&#160;<a class="code" href="class_qwt_date.html#ab915db512c556a4666ada4fbfccfce1e">QwtDate::Week0Type</a> <a class="code" href="class_qwt_date_scale_engine.html#a0a69813a80c2d4c18e1d69badba32897">QwtDateScaleEngine::week0Type</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00825"></a><span class="lineno">  825</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00826"></a><span class="lineno">  826</span>&#160;    <span class="keywordflow">return</span> m_data-&gt;week0Type;</div>
<div class="line"><a name="l00827"></a><span class="lineno">  827</span>&#160;}</div>
<div class="line"><a name="l00828"></a><span class="lineno">  828</span>&#160; </div>
<div class="line"><a name="l00841"></a><span class="lineno"><a class="line" href="class_qwt_date_scale_engine.html#a0520441c198ee00c9d727340f639504b">  841</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_date_scale_engine.html#a0520441c198ee00c9d727340f639504b">QwtDateScaleEngine::setMaxWeeks</a>( <span class="keywordtype">int</span> weeks )</div>
<div class="line"><a name="l00842"></a><span class="lineno">  842</span>&#160;{</div>
<div class="line"><a name="l00843"></a><span class="lineno">  843</span>&#160;    m_data-&gt;maxWeeks = qMax( weeks, 0 );</div>
<div class="line"><a name="l00844"></a><span class="lineno">  844</span>&#160;}</div>
<div class="line"><a name="l00845"></a><span class="lineno">  845</span>&#160; </div>
<div class="line"><a name="l00851"></a><span class="lineno"><a class="line" href="class_qwt_date_scale_engine.html#af3bd09d6cfc4b5e676b10fb2ce288ffc">  851</a></span>&#160;<span class="keywordtype">int</span> <a class="code" href="class_qwt_date_scale_engine.html#af3bd09d6cfc4b5e676b10fb2ce288ffc">QwtDateScaleEngine::maxWeeks</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00852"></a><span class="lineno">  852</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00853"></a><span class="lineno">  853</span>&#160;    <span class="keywordflow">return</span> m_data-&gt;maxWeeks;</div>
<div class="line"><a name="l00854"></a><span class="lineno">  854</span>&#160;}</div>
<div class="line"><a name="l00855"></a><span class="lineno">  855</span>&#160; </div>
<div class="line"><a name="l00865"></a><span class="lineno"><a class="line" href="class_qwt_date_scale_engine.html#a5e4f61396ba4e9bbef56caf4645e5672">  865</a></span>&#160;<a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587">QwtDate::IntervalType</a> <a class="code" href="class_qwt_date_scale_engine.html#a5e4f61396ba4e9bbef56caf4645e5672">QwtDateScaleEngine::intervalType</a>(</div>
<div class="line"><a name="l00866"></a><span class="lineno">  866</span>&#160;    <span class="keyword">const</span> QDateTime&amp; minDate, <span class="keyword">const</span> QDateTime&amp; maxDate,</div>
<div class="line"><a name="l00867"></a><span class="lineno">  867</span>&#160;    <span class="keywordtype">int</span> maxSteps )<span class="keyword"> const</span></div>
<div class="line"><a name="l00868"></a><span class="lineno">  868</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00869"></a><span class="lineno">  869</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> jdMin = minDate.date().toJulianDay();</div>
<div class="line"><a name="l00870"></a><span class="lineno">  870</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> jdMax = maxDate.date().toJulianDay();</div>
<div class="line"><a name="l00871"></a><span class="lineno">  871</span>&#160; </div>
<div class="line"><a name="l00872"></a><span class="lineno">  872</span>&#160;    <span class="keywordflow">if</span> ( ( jdMax - jdMin ) / 365 &gt; maxSteps )</div>
<div class="line"><a name="l00873"></a><span class="lineno">  873</span>&#160;        <span class="keywordflow">return</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587ae306523ed94ccf930afb811ff7a735ab">QwtDate::Year</a>;</div>
<div class="line"><a name="l00874"></a><span class="lineno">  874</span>&#160; </div>
<div class="line"><a name="l00875"></a><span class="lineno">  875</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> months = qwtRoundedIntervalWidth( minDate, maxDate, <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a0ab43f35f1bdbae7536be2be0455700a">QwtDate::Month</a> );</div>
<div class="line"><a name="l00876"></a><span class="lineno">  876</span>&#160;    <span class="keywordflow">if</span> ( months &gt; maxSteps * 6 )</div>
<div class="line"><a name="l00877"></a><span class="lineno">  877</span>&#160;        <span class="keywordflow">return</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587ae306523ed94ccf930afb811ff7a735ab">QwtDate::Year</a>;</div>
<div class="line"><a name="l00878"></a><span class="lineno">  878</span>&#160; </div>
<div class="line"><a name="l00879"></a><span class="lineno">  879</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> days = qwtRoundedIntervalWidth( minDate, maxDate, <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a1d503616cab082a9c741be881cc0a813">QwtDate::Day</a> );</div>
<div class="line"><a name="l00880"></a><span class="lineno">  880</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> weeks = qwtRoundedIntervalWidth( minDate, maxDate, <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587ae204b4e8ce8679ba9ac378e41bd77b2b">QwtDate::Week</a> );</div>
<div class="line"><a name="l00881"></a><span class="lineno">  881</span>&#160; </div>
<div class="line"><a name="l00882"></a><span class="lineno">  882</span>&#160;    <span class="keywordflow">if</span> ( weeks &gt; m_data-&gt;maxWeeks )</div>
<div class="line"><a name="l00883"></a><span class="lineno">  883</span>&#160;    {</div>
<div class="line"><a name="l00884"></a><span class="lineno">  884</span>&#160;        <span class="keywordflow">if</span> ( days &gt; 4 * maxSteps * 7 )</div>
<div class="line"><a name="l00885"></a><span class="lineno">  885</span>&#160;            <span class="keywordflow">return</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a0ab43f35f1bdbae7536be2be0455700a">QwtDate::Month</a>;</div>
<div class="line"><a name="l00886"></a><span class="lineno">  886</span>&#160;    }</div>
<div class="line"><a name="l00887"></a><span class="lineno">  887</span>&#160; </div>
<div class="line"><a name="l00888"></a><span class="lineno">  888</span>&#160;    <span class="keywordflow">if</span> ( days &gt; maxSteps * 7 )</div>
<div class="line"><a name="l00889"></a><span class="lineno">  889</span>&#160;        <span class="keywordflow">return</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587ae204b4e8ce8679ba9ac378e41bd77b2b">QwtDate::Week</a>;</div>
<div class="line"><a name="l00890"></a><span class="lineno">  890</span>&#160; </div>
<div class="line"><a name="l00891"></a><span class="lineno">  891</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> hours = qwtRoundedIntervalWidth( minDate, maxDate, <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a8e7a2f91f89423e446bfdaa1e01ebd2f">QwtDate::Hour</a> );</div>
<div class="line"><a name="l00892"></a><span class="lineno">  892</span>&#160;    <span class="keywordflow">if</span> ( hours &gt; maxSteps * 24 )</div>
<div class="line"><a name="l00893"></a><span class="lineno">  893</span>&#160;        <span class="keywordflow">return</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a1d503616cab082a9c741be881cc0a813">QwtDate::Day</a>;</div>
<div class="line"><a name="l00894"></a><span class="lineno">  894</span>&#160; </div>
<div class="line"><a name="l00895"></a><span class="lineno">  895</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> seconds = qwtRoundedIntervalWidth( minDate, maxDate, <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587aabaf7a7d45288a33590f61fe075b3590">QwtDate::Second</a> );</div>
<div class="line"><a name="l00896"></a><span class="lineno">  896</span>&#160; </div>
<div class="line"><a name="l00897"></a><span class="lineno">  897</span>&#160;    <span class="keywordflow">if</span> ( seconds &gt;= maxSteps * 3600 )</div>
<div class="line"><a name="l00898"></a><span class="lineno">  898</span>&#160;        <span class="keywordflow">return</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a8e7a2f91f89423e446bfdaa1e01ebd2f">QwtDate::Hour</a>;</div>
<div class="line"><a name="l00899"></a><span class="lineno">  899</span>&#160; </div>
<div class="line"><a name="l00900"></a><span class="lineno">  900</span>&#160;    <span class="keywordflow">if</span> ( seconds &gt;= maxSteps * 60 )</div>
<div class="line"><a name="l00901"></a><span class="lineno">  901</span>&#160;        <span class="keywordflow">return</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a7c9073c66b2628adbe772ac4c1a678ef">QwtDate::Minute</a>;</div>
<div class="line"><a name="l00902"></a><span class="lineno">  902</span>&#160; </div>
<div class="line"><a name="l00903"></a><span class="lineno">  903</span>&#160;    <span class="keywordflow">if</span> ( seconds &gt;= maxSteps )</div>
<div class="line"><a name="l00904"></a><span class="lineno">  904</span>&#160;        <span class="keywordflow">return</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587aabaf7a7d45288a33590f61fe075b3590">QwtDate::Second</a>;</div>
<div class="line"><a name="l00905"></a><span class="lineno">  905</span>&#160; </div>
<div class="line"><a name="l00906"></a><span class="lineno">  906</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a4e1d45d6382c27689a30adc11186d4f1">QwtDate::Millisecond</a>;</div>
<div class="line"><a name="l00907"></a><span class="lineno">  907</span>&#160;}</div>
<div class="line"><a name="l00908"></a><span class="lineno">  908</span>&#160; </div>
<div class="line"><a name="l00925"></a><span class="lineno"><a class="line" href="class_qwt_date_scale_engine.html#a971354b997ff2a17d3964b80bcdd3a09">  925</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_date_scale_engine.html#a971354b997ff2a17d3964b80bcdd3a09">QwtDateScaleEngine::autoScale</a>( <span class="keywordtype">int</span> maxNumSteps,</div>
<div class="line"><a name="l00926"></a><span class="lineno">  926</span>&#160;    <span class="keywordtype">double</span>&amp; x1, <span class="keywordtype">double</span>&amp; x2, <span class="keywordtype">double</span>&amp; stepSize )<span class="keyword"> const</span></div>
<div class="line"><a name="l00927"></a><span class="lineno">  927</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00928"></a><span class="lineno">  928</span>&#160;    stepSize = 0.0;</div>
<div class="line"><a name="l00929"></a><span class="lineno">  929</span>&#160; </div>
<div class="line"><a name="l00930"></a><span class="lineno">  930</span>&#160;    <a class="code" href="class_qwt_interval.html">QwtInterval</a> interval( x1, x2 );</div>
<div class="line"><a name="l00931"></a><span class="lineno">  931</span>&#160;    interval = interval.<a class="code" href="class_qwt_interval.html#a1d6e04b4c2c8e7fb513fbedd2f8984a6">normalized</a>();</div>
<div class="line"><a name="l00932"></a><span class="lineno">  932</span>&#160; </div>
<div class="line"><a name="l00933"></a><span class="lineno">  933</span>&#160;    interval.<a class="code" href="class_qwt_interval.html#ab993dac41ca70402e0cb4f9f980d90f0">setMinValue</a>( interval.<a class="code" href="class_qwt_interval.html#a0df143a36d76a677976d82987cab8a06">minValue</a>() - <a class="code" href="class_qwt_scale_engine.html#acb61bee5d09eef88aa06d6beb3c0f9c7">lowerMargin</a>() );</div>
<div class="line"><a name="l00934"></a><span class="lineno">  934</span>&#160;    interval.<a class="code" href="class_qwt_interval.html#a3eeedaf35966d535670863cb0f97613a">setMaxValue</a>( interval.<a class="code" href="class_qwt_interval.html#a44820fa5d6e6cefa59dc31ea0d522d61">maxValue</a>() + <a class="code" href="class_qwt_scale_engine.html#a7d135f0cd49cf9e8616a4d3cf27cd7b3">upperMargin</a>() );</div>
<div class="line"><a name="l00935"></a><span class="lineno">  935</span>&#160; </div>
<div class="line"><a name="l00936"></a><span class="lineno">  936</span>&#160;    <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_scale_engine.html#a83a925f83808859d02c85fa0d3ae432e">testAttribute</a>( <a class="code" href="class_qwt_scale_engine.html#a7548418e0896d75eec164bfa2ba3ff5fab3931d404b68708d0c6eaf87ae744fc9">QwtScaleEngine::Symmetric</a> ) )</div>
<div class="line"><a name="l00937"></a><span class="lineno">  937</span>&#160;        interval = interval.<a class="code" href="class_qwt_interval.html#af830a4e9be34b82eb66b96c5f4276279">symmetrize</a>( <a class="code" href="class_qwt_scale_engine.html#a041c9485898ea504d9a57ad200438d72">reference</a>() );</div>
<div class="line"><a name="l00938"></a><span class="lineno">  938</span>&#160; </div>
<div class="line"><a name="l00939"></a><span class="lineno">  939</span>&#160;    <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_scale_engine.html#a83a925f83808859d02c85fa0d3ae432e">testAttribute</a>( <a class="code" href="class_qwt_scale_engine.html#a7548418e0896d75eec164bfa2ba3ff5fad29dea0ac58c4675ac009620b0857984">QwtScaleEngine::IncludeReference</a> ) )</div>
<div class="line"><a name="l00940"></a><span class="lineno">  940</span>&#160;        interval = interval.<a class="code" href="class_qwt_interval.html#aa9802cc2bd58eab078197eeda3b53708">extend</a>( <a class="code" href="class_qwt_scale_engine.html#a041c9485898ea504d9a57ad200438d72">reference</a>() );</div>
<div class="line"><a name="l00941"></a><span class="lineno">  941</span>&#160; </div>
<div class="line"><a name="l00942"></a><span class="lineno">  942</span>&#160;    <span class="keywordflow">if</span> ( interval.<a class="code" href="class_qwt_interval.html#a200b2674f992802666b785a941b26612">width</a>() == 0.0 )</div>
<div class="line"><a name="l00943"></a><span class="lineno">  943</span>&#160;        interval = <a class="code" href="class_qwt_scale_engine.html#a9d1e0ce7074caf0bb868bd41d251c838">buildInterval</a>( interval.<a class="code" href="class_qwt_interval.html#a0df143a36d76a677976d82987cab8a06">minValue</a>() );</div>
<div class="line"><a name="l00944"></a><span class="lineno">  944</span>&#160; </div>
<div class="line"><a name="l00945"></a><span class="lineno">  945</span>&#160;    <span class="keyword">const</span> QDateTime from = <a class="code" href="class_qwt_date_scale_engine.html#a42e46dae328753ced53eda61d77f7639">toDateTime</a>( interval.<a class="code" href="class_qwt_interval.html#a0df143a36d76a677976d82987cab8a06">minValue</a>() );</div>
<div class="line"><a name="l00946"></a><span class="lineno">  946</span>&#160;    <span class="keyword">const</span> QDateTime to = <a class="code" href="class_qwt_date_scale_engine.html#a42e46dae328753ced53eda61d77f7639">toDateTime</a>( interval.<a class="code" href="class_qwt_interval.html#a44820fa5d6e6cefa59dc31ea0d522d61">maxValue</a>() );</div>
<div class="line"><a name="l00947"></a><span class="lineno">  947</span>&#160; </div>
<div class="line"><a name="l00948"></a><span class="lineno">  948</span>&#160;    <span class="keywordflow">if</span> ( from.isValid() &amp;&amp; to.isValid() )</div>
<div class="line"><a name="l00949"></a><span class="lineno">  949</span>&#160;    {</div>
<div class="line"><a name="l00950"></a><span class="lineno">  950</span>&#160;        <span class="keywordflow">if</span> ( maxNumSteps &lt; 1 )</div>
<div class="line"><a name="l00951"></a><span class="lineno">  951</span>&#160;            maxNumSteps = 1;</div>
<div class="line"><a name="l00952"></a><span class="lineno">  952</span>&#160; </div>
<div class="line"><a name="l00953"></a><span class="lineno">  953</span>&#160;        <span class="keyword">const</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587">QwtDate::IntervalType</a> intvType =</div>
<div class="line"><a name="l00954"></a><span class="lineno">  954</span>&#160;            <a class="code" href="class_qwt_date_scale_engine.html#a5e4f61396ba4e9bbef56caf4645e5672">intervalType</a>( from, to, maxNumSteps );</div>
<div class="line"><a name="l00955"></a><span class="lineno">  955</span>&#160; </div>
<div class="line"><a name="l00956"></a><span class="lineno">  956</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">double</span> width = qwtIntervalWidth( from, to, intvType );</div>
<div class="line"><a name="l00957"></a><span class="lineno">  957</span>&#160; </div>
<div class="line"><a name="l00958"></a><span class="lineno">  958</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">double</span> stepWidth = qwtDivideScale( width, maxNumSteps, intvType );</div>
<div class="line"><a name="l00959"></a><span class="lineno">  959</span>&#160;        <span class="keywordflow">if</span> ( stepWidth != 0.0 &amp;&amp; !<a class="code" href="class_qwt_scale_engine.html#a83a925f83808859d02c85fa0d3ae432e">testAttribute</a>( <a class="code" href="class_qwt_scale_engine.html#a7548418e0896d75eec164bfa2ba3ff5fa2158d4b3596e7d4a00375821fc0d20c3">QwtScaleEngine::Floating</a> ) )</div>
<div class="line"><a name="l00960"></a><span class="lineno">  960</span>&#160;        {</div>
<div class="line"><a name="l00961"></a><span class="lineno">  961</span>&#160;            <span class="keyword">const</span> QDateTime d1 = <a class="code" href="class_qwt_date_scale_engine.html#a3ce1a9589a1fc35f55b20b44a18281fb">alignDate</a>( from, stepWidth, intvType, <span class="keyword">false</span> );</div>
<div class="line"><a name="l00962"></a><span class="lineno">  962</span>&#160;            <span class="keyword">const</span> QDateTime d2 = <a class="code" href="class_qwt_date_scale_engine.html#a3ce1a9589a1fc35f55b20b44a18281fb">alignDate</a>( to, stepWidth, intvType, <span class="keyword">true</span> );</div>
<div class="line"><a name="l00963"></a><span class="lineno">  963</span>&#160; </div>
<div class="line"><a name="l00964"></a><span class="lineno">  964</span>&#160;            interval.<a class="code" href="class_qwt_interval.html#ab993dac41ca70402e0cb4f9f980d90f0">setMinValue</a>( <a class="code" href="class_qwt_date.html#afce10fd70f7a1ecac3f97776fb2dc46a">QwtDate::toDouble</a>( d1 ) );</div>
<div class="line"><a name="l00965"></a><span class="lineno">  965</span>&#160;            interval.<a class="code" href="class_qwt_interval.html#a3eeedaf35966d535670863cb0f97613a">setMaxValue</a>( <a class="code" href="class_qwt_date.html#afce10fd70f7a1ecac3f97776fb2dc46a">QwtDate::toDouble</a>( d2 ) );</div>
<div class="line"><a name="l00966"></a><span class="lineno">  966</span>&#160;        }</div>
<div class="line"><a name="l00967"></a><span class="lineno">  967</span>&#160; </div>
<div class="line"><a name="l00968"></a><span class="lineno">  968</span>&#160;        stepSize = stepWidth * qwtMsecsForType( intvType );</div>
<div class="line"><a name="l00969"></a><span class="lineno">  969</span>&#160;    }</div>
<div class="line"><a name="l00970"></a><span class="lineno">  970</span>&#160; </div>
<div class="line"><a name="l00971"></a><span class="lineno">  971</span>&#160;    x1 = interval.<a class="code" href="class_qwt_interval.html#a0df143a36d76a677976d82987cab8a06">minValue</a>();</div>
<div class="line"><a name="l00972"></a><span class="lineno">  972</span>&#160;    x2 = interval.<a class="code" href="class_qwt_interval.html#a44820fa5d6e6cefa59dc31ea0d522d61">maxValue</a>();</div>
<div class="line"><a name="l00973"></a><span class="lineno">  973</span>&#160; </div>
<div class="line"><a name="l00974"></a><span class="lineno">  974</span>&#160;    <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_scale_engine.html#a83a925f83808859d02c85fa0d3ae432e">testAttribute</a>( <a class="code" href="class_qwt_scale_engine.html#a7548418e0896d75eec164bfa2ba3ff5fa2f3985208684d394319320b8e67ea062">QwtScaleEngine::Inverted</a> ) )</div>
<div class="line"><a name="l00975"></a><span class="lineno">  975</span>&#160;    {</div>
<div class="line"><a name="l00976"></a><span class="lineno">  976</span>&#160;        qSwap( x1, x2 );</div>
<div class="line"><a name="l00977"></a><span class="lineno">  977</span>&#160;        stepSize = -stepSize;</div>
<div class="line"><a name="l00978"></a><span class="lineno">  978</span>&#160;    }</div>
<div class="line"><a name="l00979"></a><span class="lineno">  979</span>&#160;}</div>
<div class="line"><a name="l00980"></a><span class="lineno">  980</span>&#160; </div>
<div class="line"><a name="l00992"></a><span class="lineno"><a class="line" href="class_qwt_date_scale_engine.html#a46f1887b8f96cec2bfbf3bd3ae149f56">  992</a></span>&#160;<a class="code" href="class_qwt_scale_div.html">QwtScaleDiv</a> <a class="code" href="class_qwt_date_scale_engine.html#a46f1887b8f96cec2bfbf3bd3ae149f56">QwtDateScaleEngine::divideScale</a>( <span class="keywordtype">double</span> x1, <span class="keywordtype">double</span> x2,</div>
<div class="line"><a name="l00993"></a><span class="lineno">  993</span>&#160;    <span class="keywordtype">int</span> maxMajorSteps, <span class="keywordtype">int</span> maxMinorSteps, <span class="keywordtype">double</span> stepSize )<span class="keyword"> const</span></div>
<div class="line"><a name="l00994"></a><span class="lineno">  994</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00995"></a><span class="lineno">  995</span>&#160;    <span class="keywordflow">if</span> ( maxMajorSteps &lt; 1 )</div>
<div class="line"><a name="l00996"></a><span class="lineno">  996</span>&#160;        maxMajorSteps = 1;</div>
<div class="line"><a name="l00997"></a><span class="lineno">  997</span>&#160; </div>
<div class="line"><a name="l00998"></a><span class="lineno">  998</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> min = qwtMinF( x1, x2 );</div>
<div class="line"><a name="l00999"></a><span class="lineno">  999</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> max = qwtMaxF( x1, x2 );</div>
<div class="line"><a name="l01000"></a><span class="lineno"> 1000</span>&#160; </div>
<div class="line"><a name="l01001"></a><span class="lineno"> 1001</span>&#160;    <span class="keyword">const</span> QDateTime from = <a class="code" href="class_qwt_date_scale_engine.html#a42e46dae328753ced53eda61d77f7639">toDateTime</a>( min );</div>
<div class="line"><a name="l01002"></a><span class="lineno"> 1002</span>&#160;    <span class="keyword">const</span> QDateTime to = <a class="code" href="class_qwt_date_scale_engine.html#a42e46dae328753ced53eda61d77f7639">toDateTime</a>( max );</div>
<div class="line"><a name="l01003"></a><span class="lineno"> 1003</span>&#160; </div>
<div class="line"><a name="l01004"></a><span class="lineno"> 1004</span>&#160;    <span class="keywordflow">if</span> ( from == to )</div>
<div class="line"><a name="l01005"></a><span class="lineno"> 1005</span>&#160;        <span class="keywordflow">return</span> <a class="code" href="class_qwt_scale_div.html">QwtScaleDiv</a>();</div>
<div class="line"><a name="l01006"></a><span class="lineno"> 1006</span>&#160; </div>
<div class="line"><a name="l01007"></a><span class="lineno"> 1007</span>&#160;    stepSize = qAbs( stepSize );</div>
<div class="line"><a name="l01008"></a><span class="lineno"> 1008</span>&#160;    <span class="keywordflow">if</span> ( stepSize &gt; 0.0 )</div>
<div class="line"><a name="l01009"></a><span class="lineno"> 1009</span>&#160;    {</div>
<div class="line"><a name="l01010"></a><span class="lineno"> 1010</span>&#160;        <span class="comment">// as interval types above hours are not equidistant</span></div>
<div class="line"><a name="l01011"></a><span class="lineno"> 1011</span>&#160;        <span class="comment">// ( even days might have 23/25 hours because of daylight saving )</span></div>
<div class="line"><a name="l01012"></a><span class="lineno"> 1012</span>&#160;        <span class="comment">// the stepSize is used as a hint only</span></div>
<div class="line"><a name="l01013"></a><span class="lineno"> 1013</span>&#160; </div>
<div class="line"><a name="l01014"></a><span class="lineno"> 1014</span>&#160;        maxMajorSteps = qwtCeil( ( max - min ) / stepSize );</div>
<div class="line"><a name="l01015"></a><span class="lineno"> 1015</span>&#160;    }</div>
<div class="line"><a name="l01016"></a><span class="lineno"> 1016</span>&#160; </div>
<div class="line"><a name="l01017"></a><span class="lineno"> 1017</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587">QwtDate::IntervalType</a> intvType =</div>
<div class="line"><a name="l01018"></a><span class="lineno"> 1018</span>&#160;        <a class="code" href="class_qwt_date_scale_engine.html#a5e4f61396ba4e9bbef56caf4645e5672">intervalType</a>( from, to, maxMajorSteps );</div>
<div class="line"><a name="l01019"></a><span class="lineno"> 1019</span>&#160; </div>
<div class="line"><a name="l01020"></a><span class="lineno"> 1020</span>&#160;    <a class="code" href="class_qwt_scale_div.html">QwtScaleDiv</a> scaleDiv;</div>
<div class="line"><a name="l01021"></a><span class="lineno"> 1021</span>&#160; </div>
<div class="line"><a name="l01022"></a><span class="lineno"> 1022</span>&#160;    <span class="keywordflow">if</span> ( intvType == <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a4e1d45d6382c27689a30adc11186d4f1">QwtDate::Millisecond</a> )</div>
<div class="line"><a name="l01023"></a><span class="lineno"> 1023</span>&#160;    {</div>
<div class="line"><a name="l01024"></a><span class="lineno"> 1024</span>&#160;        <span class="comment">// for milliseconds and below we can use the decimal system</span></div>
<div class="line"><a name="l01025"></a><span class="lineno"> 1025</span>&#160;        scaleDiv = <a class="code" href="class_qwt_linear_scale_engine.html#adc3071ffeda099c48fce7a4d9e313c24">QwtLinearScaleEngine::divideScale</a>( min, max,</div>
<div class="line"><a name="l01026"></a><span class="lineno"> 1026</span>&#160;            maxMajorSteps, maxMinorSteps, stepSize );</div>
<div class="line"><a name="l01027"></a><span class="lineno"> 1027</span>&#160;    }</div>
<div class="line"><a name="l01028"></a><span class="lineno"> 1028</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l01029"></a><span class="lineno"> 1029</span>&#160;    {</div>
<div class="line"><a name="l01030"></a><span class="lineno"> 1030</span>&#160;        <span class="keyword">const</span> QDateTime minDate = <a class="code" href="class_qwt_date.html#a1b350f22a57b44b529bc4de740dbe213">QwtDate::floor</a>( from, intvType );</div>
<div class="line"><a name="l01031"></a><span class="lineno"> 1031</span>&#160;        <span class="keyword">const</span> QDateTime maxDate = <a class="code" href="class_qwt_date.html#ab4d7b043971e13a97a8b5f9edb5eee02">QwtDate::ceil</a>( to, intvType );</div>
<div class="line"><a name="l01032"></a><span class="lineno"> 1032</span>&#160; </div>
<div class="line"><a name="l01033"></a><span class="lineno"> 1033</span>&#160;        scaleDiv = buildScaleDiv( minDate, maxDate,</div>
<div class="line"><a name="l01034"></a><span class="lineno"> 1034</span>&#160;            maxMajorSteps, maxMinorSteps, intvType );</div>
<div class="line"><a name="l01035"></a><span class="lineno"> 1035</span>&#160; </div>
<div class="line"><a name="l01036"></a><span class="lineno"> 1036</span>&#160;        <span class="comment">// scaleDiv has been calculated from an extended interval</span></div>
<div class="line"><a name="l01037"></a><span class="lineno"> 1037</span>&#160;        <span class="comment">// adjusted to the step size. We have to shrink it again.</span></div>
<div class="line"><a name="l01038"></a><span class="lineno"> 1038</span>&#160; </div>
<div class="line"><a name="l01039"></a><span class="lineno"> 1039</span>&#160;        scaleDiv = scaleDiv.<a class="code" href="class_qwt_scale_div.html#a0f4389e6d472a1fad5ea6b3fbca8648e">bounded</a>( min, max );</div>
<div class="line"><a name="l01040"></a><span class="lineno"> 1040</span>&#160;    }</div>
<div class="line"><a name="l01041"></a><span class="lineno"> 1041</span>&#160; </div>
<div class="line"><a name="l01042"></a><span class="lineno"> 1042</span>&#160;    <span class="keywordflow">if</span> ( x1 &gt; x2 )</div>
<div class="line"><a name="l01043"></a><span class="lineno"> 1043</span>&#160;        scaleDiv.<a class="code" href="class_qwt_scale_div.html#a1ea38d52d5836fd4376f480180973786">invert</a>();</div>
<div class="line"><a name="l01044"></a><span class="lineno"> 1044</span>&#160; </div>
<div class="line"><a name="l01045"></a><span class="lineno"> 1045</span>&#160;    <span class="keywordflow">return</span> scaleDiv;</div>
<div class="line"><a name="l01046"></a><span class="lineno"> 1046</span>&#160;}</div>
<div class="line"><a name="l01047"></a><span class="lineno"> 1047</span>&#160; </div>
<div class="line"><a name="l01048"></a><span class="lineno"> 1048</span>&#160;<a class="code" href="class_qwt_scale_div.html">QwtScaleDiv</a> QwtDateScaleEngine::buildScaleDiv(</div>
<div class="line"><a name="l01049"></a><span class="lineno"> 1049</span>&#160;    <span class="keyword">const</span> QDateTime&amp; minDate, <span class="keyword">const</span> QDateTime&amp; maxDate,</div>
<div class="line"><a name="l01050"></a><span class="lineno"> 1050</span>&#160;    <span class="keywordtype">int</span> maxMajorSteps, <span class="keywordtype">int</span> maxMinorSteps,</div>
<div class="line"><a name="l01051"></a><span class="lineno"> 1051</span>&#160;    <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587">QwtDate::IntervalType</a> intervalType )<span class="keyword"> const</span></div>
<div class="line"><a name="l01052"></a><span class="lineno"> 1052</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l01053"></a><span class="lineno"> 1053</span>&#160;    <span class="comment">// calculate the step size</span></div>
<div class="line"><a name="l01054"></a><span class="lineno"> 1054</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> stepSize = qwtDivideScale(</div>
<div class="line"><a name="l01055"></a><span class="lineno"> 1055</span>&#160;        qwtIntervalWidth( minDate, maxDate, <a class="code" href="class_qwt_date_scale_engine.html#a5e4f61396ba4e9bbef56caf4645e5672">intervalType</a> ),</div>
<div class="line"><a name="l01056"></a><span class="lineno"> 1056</span>&#160;        maxMajorSteps, <a class="code" href="class_qwt_date_scale_engine.html#a5e4f61396ba4e9bbef56caf4645e5672">intervalType</a> );</div>
<div class="line"><a name="l01057"></a><span class="lineno"> 1057</span>&#160; </div>
<div class="line"><a name="l01058"></a><span class="lineno"> 1058</span>&#160;    <span class="comment">// align minDate to the step size</span></div>
<div class="line"><a name="l01059"></a><span class="lineno"> 1059</span>&#160;    QDateTime dt0 = <a class="code" href="class_qwt_date_scale_engine.html#a3ce1a9589a1fc35f55b20b44a18281fb">alignDate</a>( minDate, stepSize, <a class="code" href="class_qwt_date_scale_engine.html#a5e4f61396ba4e9bbef56caf4645e5672">intervalType</a>, <span class="keyword">false</span> );</div>
<div class="line"><a name="l01060"></a><span class="lineno"> 1060</span>&#160;    <span class="keywordflow">if</span> ( !dt0.isValid() )</div>
<div class="line"><a name="l01061"></a><span class="lineno"> 1061</span>&#160;    {</div>
<div class="line"><a name="l01062"></a><span class="lineno"> 1062</span>&#160;        <span class="comment">// the floored date is out of the range of a</span></div>
<div class="line"><a name="l01063"></a><span class="lineno"> 1063</span>&#160;        <span class="comment">// QDateTime - we ceil instead.</span></div>
<div class="line"><a name="l01064"></a><span class="lineno"> 1064</span>&#160;        dt0 = <a class="code" href="class_qwt_date_scale_engine.html#a3ce1a9589a1fc35f55b20b44a18281fb">alignDate</a>( minDate, stepSize, <a class="code" href="class_qwt_date_scale_engine.html#a5e4f61396ba4e9bbef56caf4645e5672">intervalType</a>, <span class="keyword">true</span> );</div>
<div class="line"><a name="l01065"></a><span class="lineno"> 1065</span>&#160;    }</div>
<div class="line"><a name="l01066"></a><span class="lineno"> 1066</span>&#160; </div>
<div class="line"><a name="l01067"></a><span class="lineno"> 1067</span>&#160;    <a class="code" href="class_qwt_scale_div.html">QwtScaleDiv</a> scaleDiv;</div>
<div class="line"><a name="l01068"></a><span class="lineno"> 1068</span>&#160; </div>
<div class="line"><a name="l01069"></a><span class="lineno"> 1069</span>&#160;    <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_date_scale_engine.html#a5e4f61396ba4e9bbef56caf4645e5672">intervalType</a> &lt;= <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587ae204b4e8ce8679ba9ac378e41bd77b2b">QwtDate::Week</a> )</div>
<div class="line"><a name="l01070"></a><span class="lineno"> 1070</span>&#160;    {</div>
<div class="line"><a name="l01071"></a><span class="lineno"> 1071</span>&#160;        scaleDiv = qwtDivideToSeconds( dt0, maxDate,</div>
<div class="line"><a name="l01072"></a><span class="lineno"> 1072</span>&#160;            stepSize, maxMinorSteps, <a class="code" href="class_qwt_date_scale_engine.html#a5e4f61396ba4e9bbef56caf4645e5672">intervalType</a> );</div>
<div class="line"><a name="l01073"></a><span class="lineno"> 1073</span>&#160;    }</div>
<div class="line"><a name="l01074"></a><span class="lineno"> 1074</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l01075"></a><span class="lineno"> 1075</span>&#160;    {</div>
<div class="line"><a name="l01076"></a><span class="lineno"> 1076</span>&#160;        <span class="keywordflow">if</span>( <a class="code" href="class_qwt_date_scale_engine.html#a5e4f61396ba4e9bbef56caf4645e5672">intervalType</a> == <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a0ab43f35f1bdbae7536be2be0455700a">QwtDate::Month</a> )</div>
<div class="line"><a name="l01077"></a><span class="lineno"> 1077</span>&#160;        {</div>
<div class="line"><a name="l01078"></a><span class="lineno"> 1078</span>&#160;            scaleDiv = qwtDivideToMonths( dt0, maxDate,</div>
<div class="line"><a name="l01079"></a><span class="lineno"> 1079</span>&#160;                stepSize, maxMinorSteps );</div>
<div class="line"><a name="l01080"></a><span class="lineno"> 1080</span>&#160;        }</div>
<div class="line"><a name="l01081"></a><span class="lineno"> 1081</span>&#160;        <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_date_scale_engine.html#a5e4f61396ba4e9bbef56caf4645e5672">intervalType</a> == <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587ae306523ed94ccf930afb811ff7a735ab">QwtDate::Year</a> )</div>
<div class="line"><a name="l01082"></a><span class="lineno"> 1082</span>&#160;        {</div>
<div class="line"><a name="l01083"></a><span class="lineno"> 1083</span>&#160;            scaleDiv = qwtDivideToYears( dt0, maxDate,</div>
<div class="line"><a name="l01084"></a><span class="lineno"> 1084</span>&#160;                stepSize, maxMinorSteps );</div>
<div class="line"><a name="l01085"></a><span class="lineno"> 1085</span>&#160;        }</div>
<div class="line"><a name="l01086"></a><span class="lineno"> 1086</span>&#160;    }</div>
<div class="line"><a name="l01087"></a><span class="lineno"> 1087</span>&#160; </div>
<div class="line"><a name="l01088"></a><span class="lineno"> 1088</span>&#160; </div>
<div class="line"><a name="l01089"></a><span class="lineno"> 1089</span>&#160;    <span class="keywordflow">return</span> scaleDiv;</div>
<div class="line"><a name="l01090"></a><span class="lineno"> 1090</span>&#160;}</div>
<div class="line"><a name="l01091"></a><span class="lineno"> 1091</span>&#160; </div>
<div class="line"><a name="l01108"></a><span class="lineno"><a class="line" href="class_qwt_date_scale_engine.html#a3ce1a9589a1fc35f55b20b44a18281fb"> 1108</a></span>&#160;QDateTime <a class="code" href="class_qwt_date_scale_engine.html#a3ce1a9589a1fc35f55b20b44a18281fb">QwtDateScaleEngine::alignDate</a>(</div>
<div class="line"><a name="l01109"></a><span class="lineno"> 1109</span>&#160;    <span class="keyword">const</span> QDateTime&amp; dateTime, <span class="keywordtype">double</span> stepSize,</div>
<div class="line"><a name="l01110"></a><span class="lineno"> 1110</span>&#160;    <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587">QwtDate::IntervalType</a> intervalType, <span class="keywordtype">bool</span> up )<span class="keyword"> const</span></div>
<div class="line"><a name="l01111"></a><span class="lineno"> 1111</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l01112"></a><span class="lineno"> 1112</span>&#160;    <span class="comment">// what about: (year == 1582 &amp;&amp; month == 10 &amp;&amp; day &gt; 4 &amp;&amp; day &lt; 15) ??</span></div>
<div class="line"><a name="l01113"></a><span class="lineno"> 1113</span>&#160; </div>
<div class="line"><a name="l01114"></a><span class="lineno"> 1114</span>&#160;    QDateTime dt = dateTime;</div>
<div class="line"><a name="l01115"></a><span class="lineno"> 1115</span>&#160; </div>
<div class="line"><a name="l01116"></a><span class="lineno"> 1116</span>&#160;    <span class="keywordflow">if</span> ( dateTime.timeSpec() == Qt::OffsetFromUTC )</div>
<div class="line"><a name="l01117"></a><span class="lineno"> 1117</span>&#160;    {</div>
<div class="line"><a name="l01118"></a><span class="lineno"> 1118</span>&#160;<span class="preprocessor">#if QT_VERSION &gt;= 0x050200</span></div>
<div class="line"><a name="l01119"></a><span class="lineno"> 1119</span>&#160;        dt.setOffsetFromUtc( 0 );</div>
<div class="line"><a name="l01120"></a><span class="lineno"> 1120</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l01121"></a><span class="lineno"> 1121</span>&#160;        dt.setUtcOffset( 0 );</div>
<div class="line"><a name="l01122"></a><span class="lineno"> 1122</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l01123"></a><span class="lineno"> 1123</span>&#160;    }</div>
<div class="line"><a name="l01124"></a><span class="lineno"> 1124</span>&#160; </div>
<div class="line"><a name="l01125"></a><span class="lineno"> 1125</span>&#160;    <span class="keywordflow">switch</span>( <a class="code" href="class_qwt_date_scale_engine.html#a5e4f61396ba4e9bbef56caf4645e5672">intervalType</a> )</div>
<div class="line"><a name="l01126"></a><span class="lineno"> 1126</span>&#160;    {</div>
<div class="line"><a name="l01127"></a><span class="lineno"> 1127</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a4e1d45d6382c27689a30adc11186d4f1">QwtDate::Millisecond</a>:</div>
<div class="line"><a name="l01128"></a><span class="lineno"> 1128</span>&#160;        {</div>
<div class="line"><a name="l01129"></a><span class="lineno"> 1129</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">int</span> ms = qwtAlignValue(</div>
<div class="line"><a name="l01130"></a><span class="lineno"> 1130</span>&#160;                dt.time().msec(), stepSize, up );</div>
<div class="line"><a name="l01131"></a><span class="lineno"> 1131</span>&#160; </div>
<div class="line"><a name="l01132"></a><span class="lineno"> 1132</span>&#160;            dt = <a class="code" href="class_qwt_date.html#a1b350f22a57b44b529bc4de740dbe213">QwtDate::floor</a>( dateTime, <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587aabaf7a7d45288a33590f61fe075b3590">QwtDate::Second</a> );</div>
<div class="line"><a name="l01133"></a><span class="lineno"> 1133</span>&#160;            dt = dt.addMSecs( ms );</div>
<div class="line"><a name="l01134"></a><span class="lineno"> 1134</span>&#160; </div>
<div class="line"><a name="l01135"></a><span class="lineno"> 1135</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l01136"></a><span class="lineno"> 1136</span>&#160;        }</div>
<div class="line"><a name="l01137"></a><span class="lineno"> 1137</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587aabaf7a7d45288a33590f61fe075b3590">QwtDate::Second</a>:</div>
<div class="line"><a name="l01138"></a><span class="lineno"> 1138</span>&#160;        {</div>
<div class="line"><a name="l01139"></a><span class="lineno"> 1139</span>&#160;            <span class="keywordtype">int</span> second = dt.time().second();</div>
<div class="line"><a name="l01140"></a><span class="lineno"> 1140</span>&#160;            <span class="keywordflow">if</span> ( up )</div>
<div class="line"><a name="l01141"></a><span class="lineno"> 1141</span>&#160;            {</div>
<div class="line"><a name="l01142"></a><span class="lineno"> 1142</span>&#160;                <span class="keywordflow">if</span> ( dt.time().msec() &gt; 0 )</div>
<div class="line"><a name="l01143"></a><span class="lineno"> 1143</span>&#160;                    second++;</div>
<div class="line"><a name="l01144"></a><span class="lineno"> 1144</span>&#160;            }</div>
<div class="line"><a name="l01145"></a><span class="lineno"> 1145</span>&#160; </div>
<div class="line"><a name="l01146"></a><span class="lineno"> 1146</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">int</span> s = qwtAlignValue( second, stepSize, up );</div>
<div class="line"><a name="l01147"></a><span class="lineno"> 1147</span>&#160; </div>
<div class="line"><a name="l01148"></a><span class="lineno"> 1148</span>&#160;            dt = <a class="code" href="class_qwt_date.html#a1b350f22a57b44b529bc4de740dbe213">QwtDate::floor</a>( dt, <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a7c9073c66b2628adbe772ac4c1a678ef">QwtDate::Minute</a> );</div>
<div class="line"><a name="l01149"></a><span class="lineno"> 1149</span>&#160;            dt = dt.addSecs( s );</div>
<div class="line"><a name="l01150"></a><span class="lineno"> 1150</span>&#160; </div>
<div class="line"><a name="l01151"></a><span class="lineno"> 1151</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l01152"></a><span class="lineno"> 1152</span>&#160;        }</div>
<div class="line"><a name="l01153"></a><span class="lineno"> 1153</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a7c9073c66b2628adbe772ac4c1a678ef">QwtDate::Minute</a>:</div>
<div class="line"><a name="l01154"></a><span class="lineno"> 1154</span>&#160;        {</div>
<div class="line"><a name="l01155"></a><span class="lineno"> 1155</span>&#160;            <span class="keywordtype">int</span> minute = dt.time().minute();</div>
<div class="line"><a name="l01156"></a><span class="lineno"> 1156</span>&#160;            <span class="keywordflow">if</span> ( up )</div>
<div class="line"><a name="l01157"></a><span class="lineno"> 1157</span>&#160;            {</div>
<div class="line"><a name="l01158"></a><span class="lineno"> 1158</span>&#160;                <span class="keywordflow">if</span> ( dt.time().msec() &gt; 0 || dt.time().second() &gt; 0 )</div>
<div class="line"><a name="l01159"></a><span class="lineno"> 1159</span>&#160;                    minute++;</div>
<div class="line"><a name="l01160"></a><span class="lineno"> 1160</span>&#160;            }</div>
<div class="line"><a name="l01161"></a><span class="lineno"> 1161</span>&#160; </div>
<div class="line"><a name="l01162"></a><span class="lineno"> 1162</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">int</span> m = qwtAlignValue( minute, stepSize, up );</div>
<div class="line"><a name="l01163"></a><span class="lineno"> 1163</span>&#160; </div>
<div class="line"><a name="l01164"></a><span class="lineno"> 1164</span>&#160;            dt = <a class="code" href="class_qwt_date.html#a1b350f22a57b44b529bc4de740dbe213">QwtDate::floor</a>( dt, <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a8e7a2f91f89423e446bfdaa1e01ebd2f">QwtDate::Hour</a> );</div>
<div class="line"><a name="l01165"></a><span class="lineno"> 1165</span>&#160;            dt = dt.addSecs( m * 60 );</div>
<div class="line"><a name="l01166"></a><span class="lineno"> 1166</span>&#160; </div>
<div class="line"><a name="l01167"></a><span class="lineno"> 1167</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l01168"></a><span class="lineno"> 1168</span>&#160;        }</div>
<div class="line"><a name="l01169"></a><span class="lineno"> 1169</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a8e7a2f91f89423e446bfdaa1e01ebd2f">QwtDate::Hour</a>:</div>
<div class="line"><a name="l01170"></a><span class="lineno"> 1170</span>&#160;        {</div>
<div class="line"><a name="l01171"></a><span class="lineno"> 1171</span>&#160;            <span class="keywordtype">int</span> hour = dt.time().hour();</div>
<div class="line"><a name="l01172"></a><span class="lineno"> 1172</span>&#160;            <span class="keywordflow">if</span> ( up )</div>
<div class="line"><a name="l01173"></a><span class="lineno"> 1173</span>&#160;            {</div>
<div class="line"><a name="l01174"></a><span class="lineno"> 1174</span>&#160;                <span class="keywordflow">if</span> ( dt.time().msec() &gt; 0 || dt.time().second() &gt; 0</div>
<div class="line"><a name="l01175"></a><span class="lineno"> 1175</span>&#160;                    || dt.time().minute() &gt; 0 )</div>
<div class="line"><a name="l01176"></a><span class="lineno"> 1176</span>&#160;                {</div>
<div class="line"><a name="l01177"></a><span class="lineno"> 1177</span>&#160;                    hour++;</div>
<div class="line"><a name="l01178"></a><span class="lineno"> 1178</span>&#160;                }</div>
<div class="line"><a name="l01179"></a><span class="lineno"> 1179</span>&#160;            }</div>
<div class="line"><a name="l01180"></a><span class="lineno"> 1180</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">int</span> h = qwtAlignValue( hour, stepSize, up );</div>
<div class="line"><a name="l01181"></a><span class="lineno"> 1181</span>&#160; </div>
<div class="line"><a name="l01182"></a><span class="lineno"> 1182</span>&#160;            dt = <a class="code" href="class_qwt_date.html#a1b350f22a57b44b529bc4de740dbe213">QwtDate::floor</a>( dt, <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a1d503616cab082a9c741be881cc0a813">QwtDate::Day</a> );</div>
<div class="line"><a name="l01183"></a><span class="lineno"> 1183</span>&#160;            dt = dt.addSecs( h * 3600 );</div>
<div class="line"><a name="l01184"></a><span class="lineno"> 1184</span>&#160; </div>
<div class="line"><a name="l01185"></a><span class="lineno"> 1185</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l01186"></a><span class="lineno"> 1186</span>&#160;        }</div>
<div class="line"><a name="l01187"></a><span class="lineno"> 1187</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a1d503616cab082a9c741be881cc0a813">QwtDate::Day</a>:</div>
<div class="line"><a name="l01188"></a><span class="lineno"> 1188</span>&#160;        {</div>
<div class="line"><a name="l01189"></a><span class="lineno"> 1189</span>&#160;            <span class="comment">// What date do we expect f.e. from an alignment of 5 days ??</span></div>
<div class="line"><a name="l01190"></a><span class="lineno"> 1190</span>&#160;            <span class="comment">// Aligning them to the beginning of the year avoids at least</span></div>
<div class="line"><a name="l01191"></a><span class="lineno"> 1191</span>&#160;            <span class="comment">// jumping major ticks when panning</span></div>
<div class="line"><a name="l01192"></a><span class="lineno"> 1192</span>&#160; </div>
<div class="line"><a name="l01193"></a><span class="lineno"> 1193</span>&#160;            <span class="keywordtype">int</span> day = dt.date().dayOfYear();</div>
<div class="line"><a name="l01194"></a><span class="lineno"> 1194</span>&#160;            <span class="keywordflow">if</span> ( up )</div>
<div class="line"><a name="l01195"></a><span class="lineno"> 1195</span>&#160;            {</div>
<div class="line"><a name="l01196"></a><span class="lineno"> 1196</span>&#160;                <span class="keywordflow">if</span> ( dt.time() &gt; QTime( 0, 0 ) )</div>
<div class="line"><a name="l01197"></a><span class="lineno"> 1197</span>&#160;                    day++;</div>
<div class="line"><a name="l01198"></a><span class="lineno"> 1198</span>&#160;            }</div>
<div class="line"><a name="l01199"></a><span class="lineno"> 1199</span>&#160; </div>
<div class="line"><a name="l01200"></a><span class="lineno"> 1200</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">int</span> d = qwtAlignValue( day, stepSize, up );</div>
<div class="line"><a name="l01201"></a><span class="lineno"> 1201</span>&#160; </div>
<div class="line"><a name="l01202"></a><span class="lineno"> 1202</span>&#160;            dt = <a class="code" href="class_qwt_date.html#a1b350f22a57b44b529bc4de740dbe213">QwtDate::floor</a>( dt, <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587ae306523ed94ccf930afb811ff7a735ab">QwtDate::Year</a> );</div>
<div class="line"><a name="l01203"></a><span class="lineno"> 1203</span>&#160;            dt = dt.addDays( d - 1 );</div>
<div class="line"><a name="l01204"></a><span class="lineno"> 1204</span>&#160; </div>
<div class="line"><a name="l01205"></a><span class="lineno"> 1205</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l01206"></a><span class="lineno"> 1206</span>&#160;        }</div>
<div class="line"><a name="l01207"></a><span class="lineno"> 1207</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587ae204b4e8ce8679ba9ac378e41bd77b2b">QwtDate::Week</a>:</div>
<div class="line"><a name="l01208"></a><span class="lineno"> 1208</span>&#160;        {</div>
<div class="line"><a name="l01209"></a><span class="lineno"> 1209</span>&#160;            <span class="keyword">const</span> QDate date = <a class="code" href="class_qwt_date.html#abb91fb441a254337d5445ad4bab1a662">QwtDate::dateOfWeek0</a>(</div>
<div class="line"><a name="l01210"></a><span class="lineno"> 1210</span>&#160;                dt.date().year(), m_data-&gt;week0Type );</div>
<div class="line"><a name="l01211"></a><span class="lineno"> 1211</span>&#160; </div>
<div class="line"><a name="l01212"></a><span class="lineno"> 1212</span>&#160;            <span class="keywordtype">int</span> numWeeks = date.daysTo( dt.date() ) / 7;</div>
<div class="line"><a name="l01213"></a><span class="lineno"> 1213</span>&#160;            <span class="keywordflow">if</span> ( up )</div>
<div class="line"><a name="l01214"></a><span class="lineno"> 1214</span>&#160;            {</div>
<div class="line"><a name="l01215"></a><span class="lineno"> 1215</span>&#160;                <span class="keywordflow">if</span> ( dt.time() &gt; QTime( 0, 0 ) ||</div>
<div class="line"><a name="l01216"></a><span class="lineno"> 1216</span>&#160;                    date.daysTo( dt.date() ) % 7 )</div>
<div class="line"><a name="l01217"></a><span class="lineno"> 1217</span>&#160;                {</div>
<div class="line"><a name="l01218"></a><span class="lineno"> 1218</span>&#160;                    numWeeks++;</div>
<div class="line"><a name="l01219"></a><span class="lineno"> 1219</span>&#160;                }</div>
<div class="line"><a name="l01220"></a><span class="lineno"> 1220</span>&#160;            }</div>
<div class="line"><a name="l01221"></a><span class="lineno"> 1221</span>&#160; </div>
<div class="line"><a name="l01222"></a><span class="lineno"> 1222</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">int</span> d = qwtAlignValue( numWeeks, stepSize, up ) * 7;</div>
<div class="line"><a name="l01223"></a><span class="lineno"> 1223</span>&#160; </div>
<div class="line"><a name="l01224"></a><span class="lineno"> 1224</span>&#160;            dt = <a class="code" href="class_qwt_date.html#a1b350f22a57b44b529bc4de740dbe213">QwtDate::floor</a>( dt, <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a1d503616cab082a9c741be881cc0a813">QwtDate::Day</a> );</div>
<div class="line"><a name="l01225"></a><span class="lineno"> 1225</span>&#160;            dt.setDate( date );</div>
<div class="line"><a name="l01226"></a><span class="lineno"> 1226</span>&#160;            dt = dt.addDays( d );</div>
<div class="line"><a name="l01227"></a><span class="lineno"> 1227</span>&#160; </div>
<div class="line"><a name="l01228"></a><span class="lineno"> 1228</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l01229"></a><span class="lineno"> 1229</span>&#160;        }</div>
<div class="line"><a name="l01230"></a><span class="lineno"> 1230</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a0ab43f35f1bdbae7536be2be0455700a">QwtDate::Month</a>:</div>
<div class="line"><a name="l01231"></a><span class="lineno"> 1231</span>&#160;        {</div>
<div class="line"><a name="l01232"></a><span class="lineno"> 1232</span>&#160;            <span class="keywordtype">int</span> month = dt.date().month();</div>
<div class="line"><a name="l01233"></a><span class="lineno"> 1233</span>&#160;            <span class="keywordflow">if</span> ( up )</div>
<div class="line"><a name="l01234"></a><span class="lineno"> 1234</span>&#160;            {</div>
<div class="line"><a name="l01235"></a><span class="lineno"> 1235</span>&#160;                <span class="keywordflow">if</span> ( dt.date().day() &gt; 1 ||</div>
<div class="line"><a name="l01236"></a><span class="lineno"> 1236</span>&#160;                    dt.time() &gt; QTime( 0, 0 ) )</div>
<div class="line"><a name="l01237"></a><span class="lineno"> 1237</span>&#160;                {</div>
<div class="line"><a name="l01238"></a><span class="lineno"> 1238</span>&#160;                    month++;</div>
<div class="line"><a name="l01239"></a><span class="lineno"> 1239</span>&#160;                }</div>
<div class="line"><a name="l01240"></a><span class="lineno"> 1240</span>&#160;            }</div>
<div class="line"><a name="l01241"></a><span class="lineno"> 1241</span>&#160; </div>
<div class="line"><a name="l01242"></a><span class="lineno"> 1242</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">int</span> m = qwtAlignValue( month - 1, stepSize, up );</div>
<div class="line"><a name="l01243"></a><span class="lineno"> 1243</span>&#160; </div>
<div class="line"><a name="l01244"></a><span class="lineno"> 1244</span>&#160;            dt = <a class="code" href="class_qwt_date.html#a1b350f22a57b44b529bc4de740dbe213">QwtDate::floor</a>( dt, <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587ae306523ed94ccf930afb811ff7a735ab">QwtDate::Year</a> );</div>
<div class="line"><a name="l01245"></a><span class="lineno"> 1245</span>&#160;            dt = dt.addMonths( m );</div>
<div class="line"><a name="l01246"></a><span class="lineno"> 1246</span>&#160; </div>
<div class="line"><a name="l01247"></a><span class="lineno"> 1247</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l01248"></a><span class="lineno"> 1248</span>&#160;        }</div>
<div class="line"><a name="l01249"></a><span class="lineno"> 1249</span>&#160;        <span class="keywordflow">case</span> <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587ae306523ed94ccf930afb811ff7a735ab">QwtDate::Year</a>:</div>
<div class="line"><a name="l01250"></a><span class="lineno"> 1250</span>&#160;        {</div>
<div class="line"><a name="l01251"></a><span class="lineno"> 1251</span>&#160;            <span class="keywordtype">int</span> year = dateTime.date().year();</div>
<div class="line"><a name="l01252"></a><span class="lineno"> 1252</span>&#160;            <span class="keywordflow">if</span> ( up )</div>
<div class="line"><a name="l01253"></a><span class="lineno"> 1253</span>&#160;            {</div>
<div class="line"><a name="l01254"></a><span class="lineno"> 1254</span>&#160;                <span class="keywordflow">if</span> ( dateTime.date().dayOfYear() &gt; 1 ||</div>
<div class="line"><a name="l01255"></a><span class="lineno"> 1255</span>&#160;                    dt.time() &gt; QTime( 0, 0 ) )</div>
<div class="line"><a name="l01256"></a><span class="lineno"> 1256</span>&#160;                {</div>
<div class="line"><a name="l01257"></a><span class="lineno"> 1257</span>&#160;                    year++;</div>
<div class="line"><a name="l01258"></a><span class="lineno"> 1258</span>&#160;                }</div>
<div class="line"><a name="l01259"></a><span class="lineno"> 1259</span>&#160;            }</div>
<div class="line"><a name="l01260"></a><span class="lineno"> 1260</span>&#160; </div>
<div class="line"><a name="l01261"></a><span class="lineno"> 1261</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">int</span> y = qwtAlignValue( year, stepSize, up );</div>
<div class="line"><a name="l01262"></a><span class="lineno"> 1262</span>&#160; </div>
<div class="line"><a name="l01263"></a><span class="lineno"> 1263</span>&#160;            dt = <a class="code" href="class_qwt_date.html#a1b350f22a57b44b529bc4de740dbe213">QwtDate::floor</a>( dt, <a class="code" href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a1d503616cab082a9c741be881cc0a813">QwtDate::Day</a> );</div>
<div class="line"><a name="l01264"></a><span class="lineno"> 1264</span>&#160;            <span class="keywordflow">if</span> ( y == 0 )</div>
<div class="line"><a name="l01265"></a><span class="lineno"> 1265</span>&#160;            {</div>
<div class="line"><a name="l01266"></a><span class="lineno"> 1266</span>&#160;                <span class="comment">// there is no year 0 in the Julian calendar</span></div>
<div class="line"><a name="l01267"></a><span class="lineno"> 1267</span>&#160;                dt.setDate( QDate( stepSize, 1, 1 ).addYears( -stepSize ) );</div>
<div class="line"><a name="l01268"></a><span class="lineno"> 1268</span>&#160;            }</div>
<div class="line"><a name="l01269"></a><span class="lineno"> 1269</span>&#160;            <span class="keywordflow">else</span></div>
<div class="line"><a name="l01270"></a><span class="lineno"> 1270</span>&#160;            {</div>
<div class="line"><a name="l01271"></a><span class="lineno"> 1271</span>&#160;                dt.setDate( QDate( y, 1, 1 ) );</div>
<div class="line"><a name="l01272"></a><span class="lineno"> 1272</span>&#160;            }</div>
<div class="line"><a name="l01273"></a><span class="lineno"> 1273</span>&#160; </div>
<div class="line"><a name="l01274"></a><span class="lineno"> 1274</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l01275"></a><span class="lineno"> 1275</span>&#160;        }</div>
<div class="line"><a name="l01276"></a><span class="lineno"> 1276</span>&#160;    }</div>
<div class="line"><a name="l01277"></a><span class="lineno"> 1277</span>&#160; </div>
<div class="line"><a name="l01278"></a><span class="lineno"> 1278</span>&#160;    <span class="keywordflow">if</span> ( dateTime.timeSpec() == Qt::OffsetFromUTC )</div>
<div class="line"><a name="l01279"></a><span class="lineno"> 1279</span>&#160;    {</div>
<div class="line"><a name="l01280"></a><span class="lineno"> 1280</span>&#160;<span class="preprocessor">#if QT_VERSION &gt;= 0x050200</span></div>
<div class="line"><a name="l01281"></a><span class="lineno"> 1281</span>&#160;        dt.setOffsetFromUtc( dateTime.offsetFromUtc() );</div>
<div class="line"><a name="l01282"></a><span class="lineno"> 1282</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l01283"></a><span class="lineno"> 1283</span>&#160;        dt.setUtcOffset( dateTime.utcOffset() );</div>
<div class="line"><a name="l01284"></a><span class="lineno"> 1284</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l01285"></a><span class="lineno"> 1285</span>&#160;    }</div>
<div class="line"><a name="l01286"></a><span class="lineno"> 1286</span>&#160; </div>
<div class="line"><a name="l01287"></a><span class="lineno"> 1287</span>&#160;    <span class="keywordflow">return</span> dt;</div>
<div class="line"><a name="l01288"></a><span class="lineno"> 1288</span>&#160;}</div>
<div class="line"><a name="l01289"></a><span class="lineno"> 1289</span>&#160; </div>
<div class="line"><a name="l01298"></a><span class="lineno"><a class="line" href="class_qwt_date_scale_engine.html#a42e46dae328753ced53eda61d77f7639"> 1298</a></span>&#160;QDateTime <a class="code" href="class_qwt_date_scale_engine.html#a42e46dae328753ced53eda61d77f7639">QwtDateScaleEngine::toDateTime</a>( <span class="keywordtype">double</span> value )<span class="keyword"> const</span></div>
<div class="line"><a name="l01299"></a><span class="lineno"> 1299</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l01300"></a><span class="lineno"> 1300</span>&#160;    QDateTime dt = <a class="code" href="class_qwt_date.html#a8039dc115458981fc1c7fc2c0aa8d053">QwtDate::toDateTime</a>( value, m_data-&gt;timeSpec );</div>
<div class="line"><a name="l01301"></a><span class="lineno"> 1301</span>&#160;    <span class="keywordflow">if</span> ( !dt.isValid() )</div>
<div class="line"><a name="l01302"></a><span class="lineno"> 1302</span>&#160;    {</div>
<div class="line"><a name="l01303"></a><span class="lineno"> 1303</span>&#160;        <span class="keyword">const</span> QDate date = ( value &lt;= 0.0 )</div>
<div class="line"><a name="l01304"></a><span class="lineno"> 1304</span>&#160;            ? <a class="code" href="class_qwt_date.html#a9ab1845543957472c2c6529ad03ef98d">QwtDate::minDate</a>() : <a class="code" href="class_qwt_date.html#af82ba26011550602f1adb61da53bd830">QwtDate::maxDate</a>();</div>
<div class="line"><a name="l01305"></a><span class="lineno"> 1305</span>&#160; </div>
<div class="line"><a name="l01306"></a><span class="lineno"> 1306</span>&#160;        dt = QDateTime( date, QTime( 0, 0 ), m_data-&gt;timeSpec );</div>
<div class="line"><a name="l01307"></a><span class="lineno"> 1307</span>&#160;    }</div>
<div class="line"><a name="l01308"></a><span class="lineno"> 1308</span>&#160; </div>
<div class="line"><a name="l01309"></a><span class="lineno"> 1309</span>&#160;    <span class="keywordflow">if</span> ( m_data-&gt;timeSpec == Qt::OffsetFromUTC )</div>
<div class="line"><a name="l01310"></a><span class="lineno"> 1310</span>&#160;    {</div>
<div class="line"><a name="l01311"></a><span class="lineno"> 1311</span>&#160;        dt = dt.addSecs( m_data-&gt;utcOffset );</div>
<div class="line"><a name="l01312"></a><span class="lineno"> 1312</span>&#160;<span class="preprocessor">#if QT_VERSION &gt;= 0x050200</span></div>
<div class="line"><a name="l01313"></a><span class="lineno"> 1313</span>&#160;        dt.setOffsetFromUtc( m_data-&gt;utcOffset );</div>
<div class="line"><a name="l01314"></a><span class="lineno"> 1314</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l01315"></a><span class="lineno"> 1315</span>&#160;        dt.setUtcOffset( m_data-&gt;utcOffset );</div>
<div class="line"><a name="l01316"></a><span class="lineno"> 1316</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l01317"></a><span class="lineno"> 1317</span>&#160;    }</div>
<div class="line"><a name="l01318"></a><span class="lineno"> 1318</span>&#160; </div>
<div class="line"><a name="l01319"></a><span class="lineno"> 1319</span>&#160;    <span class="keywordflow">return</span> dt;</div>
<div class="line"><a name="l01320"></a><span class="lineno"> 1320</span>&#160;}</div>
<div class="line"><a name="l01321"></a><span class="lineno"> 1321</span>&#160; </div>
<div class="ttc" id="aclass_q_list_html"><div class="ttname"><a href="class_q_list.html">QList&lt; double &gt;</a></div></div>
<div class="ttc" id="aclass_qwt_date_html"><div class="ttname"><a href="class_qwt_date.html">QwtDate</a></div><div class="ttdoc">A collection of methods around date/time values.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date_8h_source.html#l00042">qwt_date.h:43</a></div></div>
<div class="ttc" id="aclass_qwt_date_html_a1b350f22a57b44b529bc4de740dbe213"><div class="ttname"><a href="class_qwt_date.html#a1b350f22a57b44b529bc4de740dbe213">QwtDate::floor</a></div><div class="ttdeci">static QDateTime floor(const QDateTime &amp;, IntervalType)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date_8cpp_source.html#l00425">qwt_date.cpp:425</a></div></div>
<div class="ttc" id="aclass_qwt_date_html_a8039dc115458981fc1c7fc2c0aa8d053"><div class="ttname"><a href="class_qwt_date.html#a8039dc115458981fc1c7fc2c0aa8d053">QwtDate::toDateTime</a></div><div class="ttdeci">static QDateTime toDateTime(double value, Qt::TimeSpec=Qt::UTC)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date_8cpp_source.html#l00261">qwt_date.cpp:261</a></div></div>
<div class="ttc" id="aclass_qwt_date_html_a9ab1845543957472c2c6529ad03ef98d"><div class="ttname"><a href="class_qwt_date.html#a9ab1845543957472c2c6529ad03ef98d">QwtDate::minDate</a></div><div class="ttdeci">static QDate minDate()</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date_8cpp_source.html#l00499">qwt_date.cpp:499</a></div></div>
<div class="ttc" id="aclass_qwt_date_html_ab4d7b043971e13a97a8b5f9edb5eee02"><div class="ttname"><a href="class_qwt_date.html#ab4d7b043971e13a97a8b5f9edb5eee02">QwtDate::ceil</a></div><div class="ttdeci">static QDateTime ceil(const QDateTime &amp;, IntervalType)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date_8cpp_source.html#l00323">qwt_date.cpp:323</a></div></div>
<div class="ttc" id="aclass_qwt_date_html_ab915db512c556a4666ada4fbfccfce1e"><div class="ttname"><a href="class_qwt_date.html#ab915db512c556a4666ada4fbfccfce1e">QwtDate::Week0Type</a></div><div class="ttdeci">Week0Type</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date_8h_source.html#l00049">qwt_date.h:50</a></div></div>
<div class="ttc" id="aclass_qwt_date_html_abb91fb441a254337d5445ad4bab1a662"><div class="ttname"><a href="class_qwt_date.html#abb91fb441a254337d5445ad4bab1a662">QwtDate::dateOfWeek0</a></div><div class="ttdeci">static QDate dateOfWeek0(int year, Week0Type)</div><div class="ttdoc">Date of the first day of the first week for a year.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date_8cpp_source.html#l00542">qwt_date.cpp:542</a></div></div>
<div class="ttc" id="aclass_qwt_date_html_ad037b999a51cae4d9ab36bf8e7859587"><div class="ttname"><a href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587">QwtDate::IntervalType</a></div><div class="ttdeci">IntervalType</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date_8h_source.html#l00075">qwt_date.h:76</a></div></div>
<div class="ttc" id="aclass_qwt_date_html_ad037b999a51cae4d9ab36bf8e7859587a0ab43f35f1bdbae7536be2be0455700a"><div class="ttname"><a href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a0ab43f35f1bdbae7536be2be0455700a">QwtDate::Month</a></div><div class="ttdeci">@ Month</div><div class="ttdoc">The interval is related to months.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date_8h_source.html#l00096">qwt_date.h:96</a></div></div>
<div class="ttc" id="aclass_qwt_date_html_ad037b999a51cae4d9ab36bf8e7859587a1d503616cab082a9c741be881cc0a813"><div class="ttname"><a href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a1d503616cab082a9c741be881cc0a813">QwtDate::Day</a></div><div class="ttdeci">@ Day</div><div class="ttdoc">The interval is related to days.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date_8h_source.html#l00090">qwt_date.h:90</a></div></div>
<div class="ttc" id="aclass_qwt_date_html_ad037b999a51cae4d9ab36bf8e7859587a4e1d45d6382c27689a30adc11186d4f1"><div class="ttname"><a href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a4e1d45d6382c27689a30adc11186d4f1">QwtDate::Millisecond</a></div><div class="ttdeci">@ Millisecond</div><div class="ttdoc">The interval is related to milliseconds.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date_8h_source.html#l00078">qwt_date.h:78</a></div></div>
<div class="ttc" id="aclass_qwt_date_html_ad037b999a51cae4d9ab36bf8e7859587a7c9073c66b2628adbe772ac4c1a678ef"><div class="ttname"><a href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a7c9073c66b2628adbe772ac4c1a678ef">QwtDate::Minute</a></div><div class="ttdeci">@ Minute</div><div class="ttdoc">The interval is related to minutes.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date_8h_source.html#l00084">qwt_date.h:84</a></div></div>
<div class="ttc" id="aclass_qwt_date_html_ad037b999a51cae4d9ab36bf8e7859587a8e7a2f91f89423e446bfdaa1e01ebd2f"><div class="ttname"><a href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587a8e7a2f91f89423e446bfdaa1e01ebd2f">QwtDate::Hour</a></div><div class="ttdeci">@ Hour</div><div class="ttdoc">The interval is related to hours.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date_8h_source.html#l00087">qwt_date.h:87</a></div></div>
<div class="ttc" id="aclass_qwt_date_html_ad037b999a51cae4d9ab36bf8e7859587aabaf7a7d45288a33590f61fe075b3590"><div class="ttname"><a href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587aabaf7a7d45288a33590f61fe075b3590">QwtDate::Second</a></div><div class="ttdeci">@ Second</div><div class="ttdoc">The interval is related to seconds.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date_8h_source.html#l00081">qwt_date.h:81</a></div></div>
<div class="ttc" id="aclass_qwt_date_html_ad037b999a51cae4d9ab36bf8e7859587ae204b4e8ce8679ba9ac378e41bd77b2b"><div class="ttname"><a href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587ae204b4e8ce8679ba9ac378e41bd77b2b">QwtDate::Week</a></div><div class="ttdeci">@ Week</div><div class="ttdoc">The interval is related to weeks.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date_8h_source.html#l00093">qwt_date.h:93</a></div></div>
<div class="ttc" id="aclass_qwt_date_html_ad037b999a51cae4d9ab36bf8e7859587ae306523ed94ccf930afb811ff7a735ab"><div class="ttname"><a href="class_qwt_date.html#ad037b999a51cae4d9ab36bf8e7859587ae306523ed94ccf930afb811ff7a735ab">QwtDate::Year</a></div><div class="ttdeci">@ Year</div><div class="ttdoc">The interval is related to years.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date_8h_source.html#l00100">qwt_date.h:99</a></div></div>
<div class="ttc" id="aclass_qwt_date_html_aeadce3496f631eae3a7e54749078c7a4"><div class="ttname"><a href="class_qwt_date.html#aeadce3496f631eae3a7e54749078c7a4">QwtDate::utcOffset</a></div><div class="ttdeci">static int utcOffset(const QDateTime &amp;)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date_8cpp_source.html#l00635">qwt_date.cpp:635</a></div></div>
<div class="ttc" id="aclass_qwt_date_html_af82ba26011550602f1adb61da53bd830"><div class="ttname"><a href="class_qwt_date.html#af82ba26011550602f1adb61da53bd830">QwtDate::maxDate</a></div><div class="ttdeci">static QDate maxDate()</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date_8cpp_source.html#l00521">qwt_date.cpp:521</a></div></div>
<div class="ttc" id="aclass_qwt_date_html_afce10fd70f7a1ecac3f97776fb2dc46a"><div class="ttname"><a href="class_qwt_date.html#afce10fd70f7a1ecac3f97776fb2dc46a">QwtDate::toDouble</a></div><div class="ttdeci">static double toDouble(const QDateTime &amp;)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date_8cpp_source.html#l00298">qwt_date.cpp:298</a></div></div>
<div class="ttc" id="aclass_qwt_date_scale_engine_html_a0520441c198ee00c9d727340f639504b"><div class="ttname"><a href="class_qwt_date_scale_engine.html#a0520441c198ee00c9d727340f639504b">QwtDateScaleEngine::setMaxWeeks</a></div><div class="ttdeci">void setMaxWeeks(int)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date__scale__engine_8cpp_source.html#l00841">qwt_date_scale_engine.cpp:841</a></div></div>
<div class="ttc" id="aclass_qwt_date_scale_engine_html_a0a69813a80c2d4c18e1d69badba32897"><div class="ttname"><a href="class_qwt_date_scale_engine.html#a0a69813a80c2d4c18e1d69badba32897">QwtDateScaleEngine::week0Type</a></div><div class="ttdeci">QwtDate::Week0Type week0Type() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date__scale__engine_8cpp_source.html#l00824">qwt_date_scale_engine.cpp:824</a></div></div>
<div class="ttc" id="aclass_qwt_date_scale_engine_html_a1e1d01f5ac297bcdb1458a35bcd8d554"><div class="ttname"><a href="class_qwt_date_scale_engine.html#a1e1d01f5ac297bcdb1458a35bcd8d554">QwtDateScaleEngine::~QwtDateScaleEngine</a></div><div class="ttdeci">virtual ~QwtDateScaleEngine()</div><div class="ttdoc">Destructor.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date__scale__engine_8cpp_source.html#l00754">qwt_date_scale_engine.cpp:754</a></div></div>
<div class="ttc" id="aclass_qwt_date_scale_engine_html_a3ce1a9589a1fc35f55b20b44a18281fb"><div class="ttname"><a href="class_qwt_date_scale_engine.html#a3ce1a9589a1fc35f55b20b44a18281fb">QwtDateScaleEngine::alignDate</a></div><div class="ttdeci">virtual QDateTime alignDate(const QDateTime &amp;, double stepSize, QwtDate::IntervalType, bool up) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date__scale__engine_8cpp_source.html#l01108">qwt_date_scale_engine.cpp:1108</a></div></div>
<div class="ttc" id="aclass_qwt_date_scale_engine_html_a42e46dae328753ced53eda61d77f7639"><div class="ttname"><a href="class_qwt_date_scale_engine.html#a42e46dae328753ced53eda61d77f7639">QwtDateScaleEngine::toDateTime</a></div><div class="ttdeci">QDateTime toDateTime(double) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date__scale__engine_8cpp_source.html#l01298">qwt_date_scale_engine.cpp:1298</a></div></div>
<div class="ttc" id="aclass_qwt_date_scale_engine_html_a46f1887b8f96cec2bfbf3bd3ae149f56"><div class="ttname"><a href="class_qwt_date_scale_engine.html#a46f1887b8f96cec2bfbf3bd3ae149f56">QwtDateScaleEngine::divideScale</a></div><div class="ttdeci">virtual QwtScaleDiv divideScale(double x1, double x2, int maxMajorSteps, int maxMinorSteps, double stepSize=0.0) const override</div><div class="ttdoc">Calculate a scale division for a date/time interval.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date__scale__engine_8cpp_source.html#l00992">qwt_date_scale_engine.cpp:992</a></div></div>
<div class="ttc" id="aclass_qwt_date_scale_engine_html_a47dc382bbdf3e415b40543fc2736537f"><div class="ttname"><a href="class_qwt_date_scale_engine.html#a47dc382bbdf3e415b40543fc2736537f">QwtDateScaleEngine::setUtcOffset</a></div><div class="ttdeci">void setUtcOffset(int seconds)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date__scale__engine_8cpp_source.html#l00789">qwt_date_scale_engine.cpp:789</a></div></div>
<div class="ttc" id="aclass_qwt_date_scale_engine_html_a5e11c5e7c4f58063ded8f6d35d2816f4"><div class="ttname"><a href="class_qwt_date_scale_engine.html#a5e11c5e7c4f58063ded8f6d35d2816f4">QwtDateScaleEngine::setWeek0Type</a></div><div class="ttdeci">void setWeek0Type(QwtDate::Week0Type)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date__scale__engine_8cpp_source.html#l00815">qwt_date_scale_engine.cpp:815</a></div></div>
<div class="ttc" id="aclass_qwt_date_scale_engine_html_a5e4f61396ba4e9bbef56caf4645e5672"><div class="ttname"><a href="class_qwt_date_scale_engine.html#a5e4f61396ba4e9bbef56caf4645e5672">QwtDateScaleEngine::intervalType</a></div><div class="ttdeci">virtual QwtDate::IntervalType intervalType(const QDateTime &amp;, const QDateTime &amp;, int maxSteps) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date__scale__engine_8cpp_source.html#l00865">qwt_date_scale_engine.cpp:865</a></div></div>
<div class="ttc" id="aclass_qwt_date_scale_engine_html_a700136426d75d2d0af3fb36bdd400de9"><div class="ttname"><a href="class_qwt_date_scale_engine.html#a700136426d75d2d0af3fb36bdd400de9">QwtDateScaleEngine::timeSpec</a></div><div class="ttdeci">Qt::TimeSpec timeSpec() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date__scale__engine_8cpp_source.html#l00774">qwt_date_scale_engine.cpp:774</a></div></div>
<div class="ttc" id="aclass_qwt_date_scale_engine_html_a7eb99ee3e701d6f8467b1e9c8c248b9b"><div class="ttname"><a href="class_qwt_date_scale_engine.html#a7eb99ee3e701d6f8467b1e9c8c248b9b">QwtDateScaleEngine::QwtDateScaleEngine</a></div><div class="ttdeci">QwtDateScaleEngine(Qt::TimeSpec=Qt::LocalTime)</div><div class="ttdoc">Constructor.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date__scale__engine_8cpp_source.html#l00747">qwt_date_scale_engine.cpp:747</a></div></div>
<div class="ttc" id="aclass_qwt_date_scale_engine_html_a971354b997ff2a17d3964b80bcdd3a09"><div class="ttname"><a href="class_qwt_date_scale_engine.html#a971354b997ff2a17d3964b80bcdd3a09">QwtDateScaleEngine::autoScale</a></div><div class="ttdeci">virtual void autoScale(int maxNumSteps, double &amp;x1, double &amp;x2, double &amp;stepSize) const override</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date__scale__engine_8cpp_source.html#l00925">qwt_date_scale_engine.cpp:925</a></div></div>
<div class="ttc" id="aclass_qwt_date_scale_engine_html_abf679a002385bc9c56f3411d2b7de207"><div class="ttname"><a href="class_qwt_date_scale_engine.html#abf679a002385bc9c56f3411d2b7de207">QwtDateScaleEngine::utcOffset</a></div><div class="ttdeci">int utcOffset() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date__scale__engine_8cpp_source.html#l00801">qwt_date_scale_engine.cpp:801</a></div></div>
<div class="ttc" id="aclass_qwt_date_scale_engine_html_addbf8fdc00c2de0c6afe436ef25b3bef"><div class="ttname"><a href="class_qwt_date_scale_engine.html#addbf8fdc00c2de0c6afe436ef25b3bef">QwtDateScaleEngine::setTimeSpec</a></div><div class="ttdeci">void setTimeSpec(Qt::TimeSpec)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date__scale__engine_8cpp_source.html#l00765">qwt_date_scale_engine.cpp:765</a></div></div>
<div class="ttc" id="aclass_qwt_date_scale_engine_html_af3bd09d6cfc4b5e676b10fb2ce288ffc"><div class="ttname"><a href="class_qwt_date_scale_engine.html#af3bd09d6cfc4b5e676b10fb2ce288ffc">QwtDateScaleEngine::maxWeeks</a></div><div class="ttdeci">int maxWeeks() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__date__scale__engine_8cpp_source.html#l00851">qwt_date_scale_engine.cpp:851</a></div></div>
<div class="ttc" id="aclass_qwt_interval_html"><div class="ttname"><a href="class_qwt_interval.html">QwtInterval</a></div><div class="ttdoc">A class representing an interval.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__interval_8h_source.html#l00022">qwt_interval.h:23</a></div></div>
<div class="ttc" id="aclass_qwt_interval_html_a0df143a36d76a677976d82987cab8a06"><div class="ttname"><a href="class_qwt_interval.html#a0df143a36d76a677976d82987cab8a06">QwtInterval::minValue</a></div><div class="ttdeci">double minValue() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__interval_8h_source.html#l00192">qwt_interval.h:192</a></div></div>
<div class="ttc" id="aclass_qwt_interval_html_a1d6e04b4c2c8e7fb513fbedd2f8984a6"><div class="ttname"><a href="class_qwt_interval.html#a1d6e04b4c2c8e7fb513fbedd2f8984a6">QwtInterval::normalized</a></div><div class="ttdeci">QwtInterval normalized() const</div><div class="ttdoc">Normalize the limits of the interval.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__interval_8cpp_source.html#l00029">qwt_interval.cpp:29</a></div></div>
<div class="ttc" id="aclass_qwt_interval_html_a200b2674f992802666b785a941b26612"><div class="ttname"><a href="class_qwt_interval.html#a200b2674f992802666b785a941b26612">QwtInterval::width</a></div><div class="ttdeci">double width() const</div><div class="ttdoc">Return the width of an interval.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__interval_8h_source.html#l00227">qwt_interval.h:227</a></div></div>
<div class="ttc" id="aclass_qwt_interval_html_a3eeedaf35966d535670863cb0f97613a"><div class="ttname"><a href="class_qwt_interval.html#a3eeedaf35966d535670863cb0f97613a">QwtInterval::setMaxValue</a></div><div class="ttdeci">void setMaxValue(double)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__interval_8h_source.html#l00186">qwt_interval.h:186</a></div></div>
<div class="ttc" id="aclass_qwt_interval_html_a44820fa5d6e6cefa59dc31ea0d522d61"><div class="ttname"><a href="class_qwt_interval.html#a44820fa5d6e6cefa59dc31ea0d522d61">QwtInterval::maxValue</a></div><div class="ttdeci">double maxValue() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__interval_8h_source.html#l00198">qwt_interval.h:198</a></div></div>
<div class="ttc" id="aclass_qwt_interval_html_aa9802cc2bd58eab078197eeda3b53708"><div class="ttname"><a href="class_qwt_interval.html#aa9802cc2bd58eab078197eeda3b53708">QwtInterval::extend</a></div><div class="ttdeci">QwtInterval extend(double value) const</div><div class="ttdoc">Extend the interval.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__interval_8cpp_source.html#l00363">qwt_interval.cpp:363</a></div></div>
<div class="ttc" id="aclass_qwt_interval_html_ab993dac41ca70402e0cb4f9f980d90f0"><div class="ttname"><a href="class_qwt_interval.html#ab993dac41ca70402e0cb4f9f980d90f0">QwtInterval::setMinValue</a></div><div class="ttdeci">void setMinValue(double)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__interval_8h_source.html#l00176">qwt_interval.h:176</a></div></div>
<div class="ttc" id="aclass_qwt_interval_html_af830a4e9be34b82eb66b96c5f4276279"><div class="ttname"><a href="class_qwt_interval.html#af830a4e9be34b82eb66b96c5f4276279">QwtInterval::symmetrize</a></div><div class="ttdeci">QwtInterval symmetrize(double value) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__interval_8cpp_source.html#l00317">qwt_interval.cpp:317</a></div></div>
<div class="ttc" id="aclass_qwt_linear_scale_engine_html"><div class="ttname"><a href="class_qwt_linear_scale_engine.html">QwtLinearScaleEngine</a></div><div class="ttdoc">A scale engine for linear scales.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__engine_8h_source.html#l00151">qwt_scale_engine.h:152</a></div></div>
<div class="ttc" id="aclass_qwt_linear_scale_engine_html_adc3071ffeda099c48fce7a4d9e313c24"><div class="ttname"><a href="class_qwt_linear_scale_engine.html#adc3071ffeda099c48fce7a4d9e313c24">QwtLinearScaleEngine::divideScale</a></div><div class="ttdeci">virtual QwtScaleDiv divideScale(double x1, double x2, int maxMajorSteps, int maxMinorSteps, double stepSize=0.0) const override</div><div class="ttdoc">Calculate a scale division for an interval.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__engine_8cpp_source.html#l00577">qwt_scale_engine.cpp:577</a></div></div>
<div class="ttc" id="aclass_qwt_scale_arithmetic_html_a9d50d78310bbd82289f2558ad436667a"><div class="ttname"><a href="class_qwt_scale_arithmetic.html#a9d50d78310bbd82289f2558ad436667a">QwtScaleArithmetic::divideInterval</a></div><div class="ttdeci">static double divideInterval(double intervalSize, int numSteps, uint base)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__engine_8cpp_source.html#l00160">qwt_scale_engine.cpp:160</a></div></div>
<div class="ttc" id="aclass_qwt_scale_div_html"><div class="ttname"><a href="class_qwt_scale_div.html">QwtScaleDiv</a></div><div class="ttdoc">A class representing a scale division.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__div_8h_source.html#l00033">qwt_scale_div.h:34</a></div></div>
<div class="ttc" id="aclass_qwt_scale_div_html_a0f4389e6d472a1fad5ea6b3fbca8648e"><div class="ttname"><a href="class_qwt_scale_div.html#a0f4389e6d472a1fad5ea6b3fbca8648e">QwtScaleDiv::bounded</a></div><div class="ttdeci">QwtScaleDiv bounded(double lowerBound, double upperBound) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__div_8cpp_source.html#l00263">qwt_scale_div.cpp:263</a></div></div>
<div class="ttc" id="aclass_qwt_scale_div_html_a1ea38d52d5836fd4376f480180973786"><div class="ttname"><a href="class_qwt_scale_div.html#a1ea38d52d5836fd4376f480180973786">QwtScaleDiv::invert</a></div><div class="ttdeci">void invert()</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__div_8cpp_source.html#l00224">qwt_scale_div.cpp:224</a></div></div>
<div class="ttc" id="aclass_qwt_scale_div_html_aa5c61a5fef5f83f2735e4e1b8e545f0b"><div class="ttname"><a href="class_qwt_scale_div.html#aa5c61a5fef5f83f2735e4e1b8e545f0b">QwtScaleDiv::setInterval</a></div><div class="ttdeci">void setInterval(double lowerBound, double upperBound)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__div_8cpp_source.html#l00091">qwt_scale_div.cpp:91</a></div></div>
<div class="ttc" id="aclass_qwt_scale_div_html_af21aedaa886dd5e067cf63505838736ca42fbe3ad54900057e75225ff5e68cc4a"><div class="ttname"><a href="class_qwt_scale_div.html#af21aedaa886dd5e067cf63505838736ca42fbe3ad54900057e75225ff5e68cc4a">QwtScaleDiv::MediumTick</a></div><div class="ttdeci">@ MediumTick</div><div class="ttdoc">Medium ticks.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__div_8h_source.html#l00046">qwt_scale_div.h:46</a></div></div>
<div class="ttc" id="aclass_qwt_scale_div_html_af21aedaa886dd5e067cf63505838736ca6af9f3b95636a6fdebb4824c6db0ab9e"><div class="ttname"><a href="class_qwt_scale_div.html#af21aedaa886dd5e067cf63505838736ca6af9f3b95636a6fdebb4824c6db0ab9e">QwtScaleDiv::MinorTick</a></div><div class="ttdeci">@ MinorTick</div><div class="ttdoc">Minor ticks.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__div_8h_source.html#l00043">qwt_scale_div.h:43</a></div></div>
<div class="ttc" id="aclass_qwt_scale_div_html_af21aedaa886dd5e067cf63505838736cadda390d4186a0ff20ece95d986c1ae60"><div class="ttname"><a href="class_qwt_scale_div.html#af21aedaa886dd5e067cf63505838736cadda390d4186a0ff20ece95d986c1ae60">QwtScaleDiv::MajorTick</a></div><div class="ttdeci">@ MajorTick</div><div class="ttdoc">Major ticks.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__div_8h_source.html#l00049">qwt_scale_div.h:49</a></div></div>
<div class="ttc" id="aclass_qwt_scale_div_html_af67401fd5d16138eddede3381c559964"><div class="ttname"><a href="class_qwt_scale_div.html#af67401fd5d16138eddede3381c559964">QwtScaleDiv::setTicks</a></div><div class="ttdeci">void setTicks(int tickType, const QList&lt; double &gt; &amp;)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__div_8cpp_source.html#l00297">qwt_scale_div.cpp:297</a></div></div>
<div class="ttc" id="aclass_qwt_scale_engine_html_a041c9485898ea504d9a57ad200438d72"><div class="ttname"><a href="class_qwt_scale_engine.html#a041c9485898ea504d9a57ad200438d72">QwtScaleEngine::reference</a></div><div class="ttdeci">double reference() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__engine_8cpp_source.html#l00474">qwt_scale_engine.cpp:474</a></div></div>
<div class="ttc" id="aclass_qwt_scale_engine_html_a7548418e0896d75eec164bfa2ba3ff5fa2158d4b3596e7d4a00375821fc0d20c3"><div class="ttname"><a href="class_qwt_scale_engine.html#a7548418e0896d75eec164bfa2ba3ff5fa2158d4b3596e7d4a00375821fc0d20c3">QwtScaleEngine::Floating</a></div><div class="ttdeci">@ Floating</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__engine_8h_source.html#l00072">qwt_scale_engine.h:72</a></div></div>
<div class="ttc" id="aclass_qwt_scale_engine_html_a7548418e0896d75eec164bfa2ba3ff5fa2f3985208684d394319320b8e67ea062"><div class="ttname"><a href="class_qwt_scale_engine.html#a7548418e0896d75eec164bfa2ba3ff5fa2f3985208684d394319320b8e67ea062">QwtScaleEngine::Inverted</a></div><div class="ttdeci">@ Inverted</div><div class="ttdoc">Turn the scale upside down.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__engine_8h_source.html#l00076">qwt_scale_engine.h:75</a></div></div>
<div class="ttc" id="aclass_qwt_scale_engine_html_a7548418e0896d75eec164bfa2ba3ff5fab3931d404b68708d0c6eaf87ae744fc9"><div class="ttname"><a href="class_qwt_scale_engine.html#a7548418e0896d75eec164bfa2ba3ff5fab3931d404b68708d0c6eaf87ae744fc9">QwtScaleEngine::Symmetric</a></div><div class="ttdeci">@ Symmetric</div><div class="ttdoc">Build a scale which is symmetric to the reference() value.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__engine_8h_source.html#l00063">qwt_scale_engine.h:63</a></div></div>
<div class="ttc" id="aclass_qwt_scale_engine_html_a7548418e0896d75eec164bfa2ba3ff5fad29dea0ac58c4675ac009620b0857984"><div class="ttname"><a href="class_qwt_scale_engine.html#a7548418e0896d75eec164bfa2ba3ff5fad29dea0ac58c4675ac009620b0857984">QwtScaleEngine::IncludeReference</a></div><div class="ttdeci">@ IncludeReference</div><div class="ttdoc">Build a scale which includes the reference() value.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__engine_8h_source.html#l00060">qwt_scale_engine.h:60</a></div></div>
<div class="ttc" id="aclass_qwt_scale_engine_html_a7d135f0cd49cf9e8616a4d3cf27cd7b3"><div class="ttname"><a href="class_qwt_scale_engine.html#a7d135f0cd49cf9e8616a4d3cf27cd7b3">QwtScaleEngine::upperMargin</a></div><div class="ttdeci">double upperMargin() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__engine_8cpp_source.html#l00291">qwt_scale_engine.cpp:291</a></div></div>
<div class="ttc" id="aclass_qwt_scale_engine_html_a83a925f83808859d02c85fa0d3ae432e"><div class="ttname"><a href="class_qwt_scale_engine.html#a83a925f83808859d02c85fa0d3ae432e">QwtScaleEngine::testAttribute</a></div><div class="ttdeci">bool testAttribute(Attribute) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__engine_8cpp_source.html#l00431">qwt_scale_engine.cpp:431</a></div></div>
<div class="ttc" id="aclass_qwt_scale_engine_html_a9d1e0ce7074caf0bb868bd41d251c838"><div class="ttname"><a href="class_qwt_scale_engine.html#a9d1e0ce7074caf0bb868bd41d251c838">QwtScaleEngine::buildInterval</a></div><div class="ttdeci">QwtInterval buildInterval(double value) const</div><div class="ttdoc">Build an interval around a value.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__engine_8cpp_source.html#l00395">qwt_scale_engine.cpp:395</a></div></div>
<div class="ttc" id="aclass_qwt_scale_engine_html_acb61bee5d09eef88aa06d6beb3c0f9c7"><div class="ttname"><a href="class_qwt_scale_engine.html#acb61bee5d09eef88aa06d6beb3c0f9c7">QwtScaleEngine::lowerMargin</a></div><div class="ttdeci">double lowerMargin() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__engine_8cpp_source.html#l00280">qwt_scale_engine.cpp:280</a></div></div>
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